Foto
abbr. 张紧振子的强制振动（Forced Oscillation of a Tightening Oscillator）
🗣️ 情景例句
I've got no idea.
我不知道。
Who has no haste in his business mountains to him seem valleys.
做事不急，履险如夷。
There is a television in the room.
客厅里有台电视机。