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At hand
1. 在手边
I haven't my book at hand. 我的书不在手边。
2. 即将到来
He believes that the great day is at hand. 他相信这个伟大的日子就要到来。
In short supply: not existing in large enough quantities to satisfy demand 不充裕；短缺；紧缺
Basic foodstuffs were in short supply.
基本食物紧缺。
Sunshine will be in short supply for the west coast.
西海岸将不会有充足的阳光。
Back down: 放弃;让步;打退堂鼓
He backed down after I saw his mistake.
在我拆穿他的大话后,他让步了。
I see he has backed down from the position he took last week.
我注意到他放弃了上星期的立场。
