Watch up and down

上下───Up and down;注意───be careful

He paced nervously up and down on the platform.───他在站台上情绪不安地走来走去.

I looked up and down the corridor.───我来回扫视着走廊。

The waves were about five feet now, and the bow of the boat was leaping up and down.───那时浪高大约有5英尺，船头在上下颠簸。

I strolled up and down thoughtfully before calling a taxi.───我踱来踱去仔细思量后叫了一辆出租车。

The water buffalo squelched up and down the paddy fields, pulling the plough.───水牛拉着犁,在稻田里咕唧咕唧地走着.

There's a lot of rushing up and down the gangways.───舷梯上许多人上上下下。

He paced up and down, fulminating against Thomas.───他一边来回踱步, 一边大声怒斥托马斯.

He immediately threw a tantrum, screaming and stomping up and down like a child.───他立即耍起性子来，像小孩似的跺着脚又叫又跳。