1·I looked up and down the corridor.
我来回扫视着走廊。
—— 《牛津词典》
2·He kept pumping my hand up and down.
他不停地摇动着我的手。
—— 《牛津词典》
3·He jigged up and down with excitement.
他激动得又蹦又跳。
—— 《牛津词典》
4·She paced up and down outside the room.
她在屋子外面来回走着。
—— 《牛津词典》
5·My relationship with him was up and down.
我跟他的关系忽冷忽热。
—— 《牛津词典》
6·The boat bobbed up and down on the water.
小船在水面颠簸。
—— 《牛津词典》
7·He kept bouncing up and down like a yo-yo.
他像个悠悠球似的蹦蹦跳跳。
—— 《牛津词典》
8·He looked up and down the rain-swept street.
他上下大量着下着大雨的街道。
—— 《柯林斯英汉双解大词典》
9·Tiny boats bobbed up and down in the harbour.
小船在港湾中颠簸。
—— 《牛津词典》
10·The children jumped up and down to keep warm.
孩子们上下跳动保持身体暖和。
—— 《牛津词典》