vt.& vi. 使工作;使运作;操作;使产生效果;
n. 工作,操作;著作;工厂;行为,事业;
vt. 使工作;操作;经营;使缓慢前进;
🗣️ 情景例句
you've been writing for the school paper.
你为校刊写文章。
Mr. Smith is still in his forties.
史密斯先生才四十几岁。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!