gathering例句

The lighthouse beam was quite distinct in the gathering dusk.
灯塔的光束在渐浓的暮色中清晰可见。

Dr Ryan travelled the world gathering material for his book.
瑞安博士周游世界为他的书搜集资料。

Many of the machines are gathering dust in basements.
许多机器尘封在地下室里。

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