When small creatures swim past, they bend the hairs on the bladder, causing a flap to open.
当小生物游过时，它们会弯曲膀胱上的毛发，导致膀胱瓣打开。
Now is your chance to find out! Put both feet in, get in the water, and feel how it is to flap instead of kick.
现在是你发现的机会！双脚都伸进去，入水，感受拍打而不是踢腿的感觉。
Furthermore, the birds orient themselves carefully with regard to the Sun and gently flap their wings to increase convection cooling.
此外，这些鸟会根据太阳的位置谨慎调整自己的方向，并轻轻拍打翅膀以增加对流的降温效果。
She gets in a flap over the slightest thing.
极小的事也能令她不安。
He drew back the tent flap and strode out into the blizzard.
他拉开帐篷的门帘，大步走进了暴风雪中。
She folded up her letter, licking the envelope flap with relish.
她把信折起来，享受地舔着信封盖。
It was so shocked by the beauty of Wang that it even forgot to flap wings.
它被王昭君的美丽所震撼，甚至忘记了扇动翅膀。
If not, your possessions are safest in a pocket with a button-down flap.
如果没有，你的物品放在有纽扣的口袋里是最安全的。
You can train it to flap its wings to escape a situation but it's very difficult to get it to flap its wings for food.
你可以训练它扇动翅膀以逃避某种情况，但要让它扇动翅膀获取食物是非常困难的。
With a flap of its wings the sparrow flew off.
麻雀忒儿一声飞了。
Ball nut, a fixed spherical nut driven by the jackscrew for flap and stabilizer movement.
球形螺母，由顶头螺钉驱动的固定球形螺母，用于翻板和稳定器运动。
打你的耳光去！
My hands started shaking as I loosened the flap.
当我打开了信封，我的手开始发抖了。
Couldn't you just open a flap or something and let it out?
你难道不能在(宇航服上)开个口之类的，把气味儿放出来么？
With this new shape, the vertical gurney flap (2) has been reduced.
与新的改动相配套，垂直gurney襟翼(2)缩小了。
The side-mounted Micro USB port is covered by a small plastic flap.
侧面的MicroUSB接口外有个小塑料盖。
This clouding can be caused by an inflammation under the flap of cornea tissue.
这种浑浊是由角膜瓣下角膜组织的炎症反应所造成的。
Mr Obama’s televised beginning-of-term speech to schoolchildren caused a flap.
电视上播放奥巴马给小学生做新学期演讲，民众议论纷纷。
New astigmatism caused by wrinkling in the corneal flap or other flap complications.
由角膜瓣褶皱所造成的散光或其他角膜瓣的并发症。
Pieces of plastic and cardboard flap across the glass-free windows of tatty brick houses.
塑料片和硬纸片拍打着破旧的砖屋的玻璃碎了的窗户。
Originally, inserting a new lens meant cutting a flap in the eyeball some 11mm across.
最初，植入一个新的晶体意味着在眼球上划开一个大约11毫米的口子。
They have a large flap of skin that they use as a mask to cover their face when they sleep.
它们长有一大片的皮瓣，在睡觉时可用作遮脸的罩子。
They've never sprinted headlong into a flock of seagulls to watch them flap and scatter.
他们也不曾猛冲入海鸥群中，看着它们振翅四散。
Then its miniature wings begin to flap as it slips under the door and darts along the street.
当它从门下溜出后，它的微型翅膀开始扑闪并沿着街道飞去。
In tests, this fabric flap proved itself to be exceptionally good at sweeping up dust bunnies.
好吧。在测试里这些多余的布料证明了自己清扫灰尘的功能非常出色。
They are even trying to mimic insects, by making robots that take off when they flap their wings.
他们甚至在努力模仿昆虫，研发可以振翅高飞的昆虫机器人。
Babies learn to anticipate what's coming next in a story or behind a flap in a lift-the-flap book.
宝宝学会预测故事的下一个情节或翻页书下一页的内容。
Twenty minutes later, he scraped off the last bit of glue and with shaking hands he opened the flap.
二十分钟后，他刮掉了最后一点儿胶水，双手颤抖着打开口盖。
Twenty minutes later, he scraped off the last bit of glue and with shaking hands he opened the flap.
二十分钟后，他刮掉了最后一点儿胶水，双手颤抖着打开口盖。
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