I'm all at sea with these new regulations.

我全然不懂这些新的规章。

《牛津词典》

The boats are all out at sea.

船只全都出海了。

《牛津词典》

A major chemical spill occurred five years ago at Baker's Beach, the world's sole nesting ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from hatching.

五年前，在世界上唯一的梅里克海龟的筑巢地——贝克海滩，发生了一起重大的化学物质泄漏事件，导致当年几乎所有的海龟卵无法孵化。

youdao

Eleanor was the navigator on each ship that Josiah commanded during all their years at sea.

VOA: special.2009.12.23

"For example,of all the turtles that are killed out at sea, due to gill net fisheries.

VOA: standard.2010.07.15

Republicans are still all at sea, as indeed they were in last year's presidential primaries.

ECONOMIST: Binning the IRS

In key areas like slip catching, England are superbly drilled but Pakistan look all at sea.

BBC: Jonathan Agnew column

But the rearranged side looked all at sea as they went behind before a minute was out.

BBC: Sport - Aberdeen 2-2 St Mirren