Object level structure
[計] 目標級結構
?? 詞語組成解析
level
['l?vl]
n. 水平，水準;水平線，水平面;水平儀;[物]電平;
adj. 水平的;同高度的;平均的;平穩的;
vt. 使同等;對準;弄平;
vi. 拉平;（用槍等）瞄準（與 at 連用）;變得平坦;將（話、批評等）對準目標;
vi. 瞄準;拉平;變得平坦;
??? 情景例句
Mmm, this is delicious!
嗯，很好吃！
I ask him to do the washing now.
我要求他現在做洗滌工作。
and one odd finding that makes the problem puzzling is that it looks very much as if sleeping is not simply a matter of giving the body a rest.
一項使人對這個問題感到困惑的奇怪的發現是，睡眠在很大程度似乎并不僅僅是為了使身體得到休息。