whistling

He came home for dinner whistling cheerfully.

他欢快地吹口哨回家吃饭。

The bomb exploded, sending shrapnel whistling through the trees.

炸弹爆炸了，弹片呼啸穿过树林。

You've been whistling that same tune all morning. Knock it off, will you?

整个上午你说来说去都是老一套, 别再讲了, 好不好?

He seems confident, but he’s whistling in the dark. He knows he’s going to lose the game.

他看上去信心十足，但只是故作了。他很清楚自己要输掉比赛了。

When he heard the bomb whistling down, Jim hurled himself down on the floor with his hands over his head.

听到炸弹的呼啸落地, 吉姆双手抱头, 迅速趴在地板上。