Be absent from...
缺席..., 不在...
🧩 词语组成解析
be
[bi]
v. 是;有，存在;做，成为;发生;
aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质;
🗣️ 情景例句
They are eager to learn English.
他们急着要学英语。
It was after dark when we got back,and we were all tired.
我们回来时天已经黑了，并且我们都很疲倦。
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。