Adjustable speed
[化] 可调速度
🧩 词语组成解析
speed
[spid]
n. 速度;快速;昌盛;（汽车的）变速器，排挡;
vt.& vi. 急行，加速;
vi. 超速;加速;迅速前行;兴隆;
vt. 加快…的速度;使成功，使繁荣;
🗣️ 情景例句
He seems to be getting on very well at school.
他在学校似乎过得很好。
Every dog is valiant at his own door.
站在家门口，狗也雄纠纠。
The ship is going under the bridge.
那船正从桥下驶过。