at the same time.
同時;然而
例句：
Father and Jack came home at the same time.
父親和傑克同時到家。
I know he is untruthful, but, at the same time, Imust admit he is a good worker.
我知道他不老實，然而我必須承認他是位優秀的勞工。
to say nothing of.
更不必提……，更不用説……
例句：
She can dance, to say nothing of singing.
她會跳舞，歌唱就更不用説了。
He has no scholarship, to say nothing of experience.
他一無學識，更別提經驗了。
on schedule.
按時，準時
例句：
The train was in on schedule.
火車準時進站。
The airplane reached Paris on schedule.
班飛機按時飛抵巴黎。
at sea.
在海上，在航海中
例句：
The ship and its crew were lost at sea.
那艘船及其船員在海上失蹤了。
When he woke up, the ship was at sea.
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