🗣️ 情景例句
I could tell something was up by the look on their faces.
我一看他们的脸色就知道有事。
You'd have a better chance of catching the train if you took a bus to the station instead of walking.
如果你不是步行而是乘公共汽车的话，那你就比较有可能赶上火车。
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。