Foto
abbr. 张紧振子的强制振动（Forced Oscillation of a Tightening Oscillator）
🗣️ 情景例句
Well, how can I make my famous apple pie without cinnamon?
这下好啦 没有肉桂 我那道着名的苹果派怎么做呢
Politeness is to do and say the kindest thing in the kindest way.
文雅就是善良地做事，和善地说话。
Good morning! What can I do for you?
早上好！您想买点什么？