all at sea

• adv. 茫然(不知所措；迷惑；完全复原；不再疼痛)

all at sea的用法和样例：

例句

1. I'm all at sea; I've no idea how to repair cars.
   我手足无措，不知道怎样修理汽车。
2. The guide was ready enough with his usual pattern on the history of the place, but as soon as you began to question him on anything outside that, he was all at sea.
   向导把该地历史的老一套讲得滚瓜烂熟，但当你一问起别的东西时，他就瞠目结舌，无言以对了。
3. I'm all at sea.
   我一点主意也没有。
4. My new hi-fi has so many lights and switches that I was all at sea when I first tried to use it.
   我新买的那台高保真音响设备有许许多多指示灯和开关，以致我第一次打开它时竟不知所措。