Harmodotron
(產生毫米波的)電子束管, (正交場)毫米波振蕩管
??? 情景例句
I'll think about it and call you back soon, OK?
我考慮一下，回頭我盡快打電話給你，好嗎？
Come what may, heaven won't fall.
船到橋頭自會直。
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。