He had to duck as he came through the door.

他穿过门口时得弯下身来。

《牛津词典》

Rotating 16 birds through the positions in a four-duck row, the researchers found outer birds half-asleep during some 32 percent of dozing time versus about 12 percent for birds in internal spots.

研究人员把16只鸟按顺序4只排成一排，发现外面的鸟在32%的时间里处于半睡眠状态，而内部的鸟只有12%的时间处于半睡眠状态。

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He had to duck his head to get through the low doorway.

他只得把头低下才能通过那低矮的门道。

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The hosts managed to break their duck through an Andre Pretorious penalty, but it was brief respite and the Lions soon went back on the attack.

BBC: Golden Lions 10-74 Lions

To prepare the duck, chefs go through a lengthy process.

BBC: Sampling Beijing��s imperial duck

Enjoy a real Peking duck dinner, nibble through a dim sum banquet, slurp a hot pot lunch, a tea banquet, and scarf down a farewell feast.

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