Foto
abbr. 张紧振子的强制振动（Forced Oscillation of a Tightening Oscillator）
🗣️ 情景例句
No. But in five or six months ...
不急。但是在五 、六个月后……
It was not until the accident happened that I became aware of my own foolishness.
直到事故发生我才意识到我自己的愚蠢。
A red tie will match that suit.
红领带会配那件衣服。