Selfpropelled
自行的
🗣️ 情景例句
Do you want a first class, business class or economy seat?
你想要头等舱、商务舱还是经济舱？
If you command wisely, you'll be obeyed cheerfully.
倘君指挥有方，人人欣然听命。
It lasts from May to July.
从5月持续到7月。