正准备做某事，突然间…
Sb. was (just) about to do sth. when…
某人正要干某事这时……
It's + adj. + to do sth. ask sb. about sth. by doing STH. What's your favorite......? The best way to do STH.
做某事的……的。向某人询问某事通过做某事你最喜爱的……是什么？做某事的最好方式。
As a result of too exert oneself to do sth. on tiptoe, can make knee concerns because of tiptoe emphatic and too go up at leg abdomen forcibly, bring about turnip leg very easily.
由于过于在脚尖上用力，会使膝盖因为脚尖用力的关系而太用力于腿肚上，很轻易导致萝卜腿。
We've got to do sth about pollution.
我们得对污染采取措施了。
We've got to do sth about pollution.
我们得对污染采取措施了。
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