Variable star
变星
🧩 词语组成解析
star
[stɑr]
n. 星;星状物;星级;明星;
v. 主演;（在文字等旁）标星号;
🗣️ 情景例句
and left ... push ... push ... turn ... hit the floor.
向左……推……推……转身……坐地板。
We have no vacancies now, but we'll certainly bear your application in mind.
我们目前没有空缺，但是我们一定记住你申请的事。
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!
因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。