They move under cover of darkness.
他们在黑夜的掩护下行进。
They managed to escape under cover of darkness.
他们设法在夜色掩护下逃跑了。
Later, under cover of darkness, they crept into the house.
后来他们在夜幕的掩护下溜进了房子。
A storm is coming. Let's get the wheat under cover quickly.
要变天啦，快把麦子收起来吧！
He kept the important information under cover.
他对重要的信息秘而不宣。
Plans for the attack were made under cover.
进攻计划是秘密制定的。
We are sending you under cover a price list.
我们为您寄去了一份价目表。
The enemy attacked us under cover of darkness.
敌人乘黑夜袭击我们。
The attack jumped off under cover of a barrage.
进攻在炮火的掩护下开始了。
The check came under cover in yesterday's mail.
支票是装在信封里和昨天的邮件一起送来的。
The yacht made landfall under cover of darkness.
游艇在夜幕的掩护下靠岸了。
The soldiers crept forward under cover of darkness.
士兵在夜色的掩护下匍匐前进。
He kept his invention under cover until it was patented.
在取得专利前，他的发明一直秘而不宣。
It will be much easier to sneak in under cover of darkness.
在黑暗的笼罩下潜入会容易得多。
A small party stole up on the bridge under cover of darkness.
一支小分队乘黑夜偷袭了那座桥梁。
Reinforcements were sent across the river under cover of darkness.
在夜幕的掩护下，增援力量被派到了河的对岸。
We are now sending you, under cover, a list of main commodities available for export.
现随函附寄我公司目前可以供应的主要出口商品表一份。
We are now sending you, under cover, a list of main commodities available for export.
现随函附寄我公司目前可以供应的主要出口商品表一份。
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