be careful
当心,小心
例句与用法:
Be careful about what you say.
对你所说的话要小心.
You should be careful when making a promise.
你应当谨慎做出承诺.
Be careful!
一定要小心!
Be careful crossing the road.
过马路要当心.
Be careful of that viper; he is dangerous.
小心那个阴险的人,他很危险.
Be careful of that chair; it's a bit rocky.
当心,那椅子有些不稳.
Be careful when you cross the road.
过马路时要当心.
Be careful not to lose too much liquid by evaporation.
小心,不要因为蒸发作用而失掉过多的水份.