An ace in the hole is an argument, plan or thing kept hidden until needed.

VOA: special.2009.11.22

What we will have come to us, is a corresponding response from every neuron, for example in the upper left, you would see a green little hole.

我们看到的是，每个神经元都作出反应，比如在左上方，大家能够看到一个绿色的小洞。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

And hole in the walls that people don't even know about, and they are just like, they line the streets.

那儿有人们都不知道的小店铺，它们就像，排列在大街上一样。

关于SOHO - SpeakingMax英语口语达人

When this happened, my friend would have to go in the hole.

VOA: special.2009.10.11

Either you open a nice hole between yourself and the rest of your army, in which case somebody's going to get very badly killed and you're going to be on the run very soon, or you have to somehow communicate to the rest of the army, "Everybody come over this way," which will still leave that flank open to being flanked by the other side.

或者在你和自己的军队之间,形成一个缺口,这样有会造成惨重的伤亡,你很快会全军溃逃,或者你以某种方式和部队沟通,全都过来这边,这样仍会使一侧对敌人敞开,从而受到对方攻击

耶鲁公开课 - 古希腊历史简介课程节选

Often,the ace in the hole wins the game.

VOA: special.2009.11.22

Fire in the hole!

VOA: standard.other

There is a small hole in the side to drain out extra moisture and keep from drowning the plants.

VOA: special.2011.06.14

A doughnut is a round piece of fried dough with a hole in the middle or filled with cream or jelly.

VOA: special.2010.04.12

Professor Atema works with Boston University and the Marine Biological Laboratory at the Woods Hole Oceanographic Institution, both in Massachusetts.

VOA: special.2010.08.03

You can put your hands through a hole in a clear, plastic box and hold the huge piece of gold.

VOA: special.2010.03.22

In fact, the average sale price of a single-family home in Jackson Hole is more than one million dollars.

VOA: special.2009.02.16

Poor Billy! A bullet came out of the sky one day and tore a great hole in Billy's chest.

VOA: special.2009.12.12

One argument against the comet theory is that a comet would have left a large hole in the Earth's surface.

VOA: special.2009.01.20

During the summers, she studied the ocean and its life forms at the Woods Hole Marine Biological Laboratory in Massachusetts.

VOA: special.2010.03.14

In modern terms,the hot oven that the glassblower uses to quickly reheat the glass is called a "glory hole."

VOA: special.2009.09.16

Each hair on a person's head grows from a single tube-like hole in the skin called a follicle.

VOA: special.2011.04.05

"You see, we got a little hole in that flag there, When Washington took it across the Delaware.

VOA: special.2010.07.02

Scientists believe it is evidence that a large object struck Jupiter, cutting a hole in the atmosphere of the huge, gaseous planet.

VOA: special.2009.08.25

She was the first female golfer to score lower than three hundred in a seventy-two hole tournament.

VOA: special.2009.03.29

It would die soon, and they would burn a hole in the frozen ground to bury it.

VOA: special.2010.02.27

Today, the government controls about ninety-seven percent of all the land in the Jackson Hole area.

VOA: special.2009.02.16

After that,if you do fertilize the bulbs, do not mix the fertilizer in the planting hole.

VOA: special.2011.04.12

The Marines attacked. They broke open a small hole in the door of the brick building.

VOA: special.2009.07.02

Some of the stores in Jackson Hole sell unusual things, like furniture made of deer antlers.

VOA: special.2009.02.16

After he spent a winter in the area, his friends started to call it "Jackson's Hole.

VOA: special.2009.02.16

The valley looks like a hole in the middle of the mountains that surround it.

VOA: special.2009.02.16

He had a bright red flower in the button hole of his black jacket.

VOA: special.2009.04.04

All that was left was a stone for the last hole in the wall.

VOA: special.2009.02.07

A huge hole was torn in the front of it a long time ago.

VOA: special.2010.05.12