A cloud of dust covered the loading dock after the forklift dropped the cement bags.

堆高機把水泥袋掉落後,一團灰塵籠罩了裝卸平台。

Guests reported a cloud of smoke near the hotel kitchen, so the manager called maintenance.

房客反映飯店廚房附近有一團煙霧,於是經理通知了維修人員。

The factory installed new filters to stop clouds of gas from escaping during shipping preparation.

工廠安裝了新的過濾器,以防止出貨準備期間有一團團氣體外洩。