-
(1) at sea
表示“在茫茫大海上”
，
意指“离海岸很远”
。如
:
①
Now
his ships were all at sea.
现在他的船都出海了。
②
The ship hit an
iceberg and buried at sea.
这船撞上了冰山，
葬
身海底。
③
Several ships
were lost at sea owing to the hurricane.
由于飓
风，好几艘船在海上失踪。
④
These sailors were at sea
for forty days before reaching land.
这些水手在海上漂泊了
40
天后，他们的船才靠岸。
⑤
After three
days at sea we sighted the land.
在海上航行了
三天，我们终于看见了
大陆。
⑥
This
painting is a representation of a storm at sea.
这幅画
表现的是海上风暴。
⑦
The
ship
has
spent
three
months
at
sea.
轮船已在海上度
过了三个月。
(2)
at
sea
前面加上
all
或
completely
时，引申为“茫然不知所
措”之意。如
:
①
I'm all at sea.
I can't understand that problem.
我简直是一片<
/p>
茫然，我无法理解这个问题。
②
He was all at
sea when he began his new job.
他开始新工作
时，茫然不知所措。
③
Would you
please explain it again? I'm all at sea.
你能否再解
释一下
?
我一点儿也不懂
。