极地涡旋是冬季风形成的一个风系。
你系的那条领带太艳丽了。
他穿上那双厚重的绒面革皮鞋并系好鞋带。
有一条布系在狗项圈上。
泰德六岁时，我们决定让他知道怎样系和解他的安全带。
When Ted was six we decided that he needed to know how to fasten and unfasten his seat belt.
太空船使得科学家可以研究太阳系中一些不为人知的角落。
The spacecraft will enable scientists to study some dark corners of the solar system.
学生必须选这两个系中的一个。
船并没有系好，她一动就使它漂离了海岸。
The boat was not fastened, and the motion which she occasioned, made it drift from the shore.
如果太阳系有一个后进生，那一定是金星。
If the solar system has an underachiever, it has to be Venus.
渔夫系好他们的鱼饵。
花朵上系满了银铃。
我把绳子系在上面。
水桶系在什么上？
你还应该就这些问题向系办公室或学业导师请教。
You should also direct your questions to your departmental office or academic adviser.
你的鞋系好了吗？
有人甚至想把绳子系在他的手脚上，牵着绳子让他跳舞。
One even attempted to tie strings to his feet and his hands to make him dance.
某天飞机起飞前，空姐走到山姆面前要求他系好安全带。
One day before the plane took off, the stewardess approached Sam and asked him to fasten his seat belt.
我把夹克的拉链拉上，系好扣子。
他把印花大围巾系在他的脖子上。
巴里正坐在床上系一双旧跑鞋的鞋带。
Barry was sitting on the bed, tying the laces of an old pair of running shoes.
她迅速钻进她的迷你车并系好安全带。
他把带子牢牢地系在一起。
他坐在台阶上系好靴子。
法律规定必须系安全带。
乌克兰人讲一种类似于俄语的斯拉夫系语言。
The Ukrainians speak a Slavonic language similar to Russian.
这是119颗太阳系外行星中的一颗。这些行星围绕除太阳外的其他星体运行。
The planet is one of 119 known extra-solar planets, objects that orbit stars other than the sun.
我有一双很好的溜冰鞋，但是无论我把鞋带系得多么紧，我的脚踝还是在里面晃荡。
I have a good pair of skates, but no matter how tightly I lace them, my ankles wobble.
父母开始告诉小孩如何系好鞋带。
The parents began to tell the little child how to lace his shoes.
火星是太阳系中最轻的行星，这使得火星成为太阳系中第二小的行星。
Mars is the lightest planet in the solar system, which makes Mars the second smallest planet in the solar system.
火星是太阳系中最轻的行星，这使得火星成为太阳系中第二小的行星。
Mars is the lightest planet in the solar system, which makes Mars the second smallest planet in the solar system.
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