At dusk bats appear in vast numbers.

蝙蝠于傍晚时分大批出现。

《牛津词典》

At night, the bats leave their cave.

天黑时，蝙蝠离开它们的洞穴。

youdao

Bats come out only at night.

蝙蝠只在夜间出来。

youdao

While the adults go out at night for food, the young bats hang out in the cave for four or five weeks.

VOA: special.2009.12.07

He preached the fundamental importance of quality at bats through plate discipline and patience.

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Besides stealing 24 bases in 31 attempts, Gordon also hit an impressive .304 over 224 at bats.

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The National League Most Valuable Player hit for 322 total bases in a just 403 official at bats.

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