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abbr. 张紧振子的强制振动（Forced Oscillation of a Tightening Oscillator）
🗣️ 情景例句
He never drinks except on special occasions.
除非在特别场合，他从不喝酒。
Martha's bread tastes as if she burns it.
玛莎做的面包有烤焦的味道。
This greatly reduced the speed of the ship,
这样一来，大大降低了船的航速。