The naming of stars is at the discretion of the International Astronomical Union.给星体命名是由国际天文学联合会决定的。He developed an armillary sphere, on which were carved all the astronomical phenomena known time.经过多年的观察,他研制了一架“浑天仪”.凡是知...
Locking up men does nothing more than keep them off the streets.把这些人关起来只是做到了不让他们上街而已。The brakes began locking.制动器开始锁定。I took the precaution of locking money in the safe.我把所有的钱都锁在保险箱里以防万一....