注: Ⅰ动词1.(灌入) pour; irrigate 短语和例子浇注 pour; 大雨如注。 the rain poured down.; it's a downpour.2.(集中) concentrate on; fix on; focus on 短语和例子专注 concentrate one's attention on; 全神贯注 concentrate on; be
重力: [力学] gravity; force of gravity; gravity force; power of gravity; pull of gravity; gravitational force 短语和例子这块石头由于重力作用而滚下山。 the stone rolled down the mountain by gravity.; 重力测定 gravimetric(