The orbits of planets in the once popular geocentric Ptolemaic system are epitrochoids.曾经盛行的托勒密地心说体系里的行星轨道就是外旋轮线.Mars and Earth have orbits which change with time...火星与地球的运行轨道随着时间而变化。Other enumeration problems lead us to...
The garrison musters eighty men.驻军共有八十名.Musters were being taken through England in view of wars with Scotland and France.一群群队伍在带领下正穿过英格兰,期待与苏格兰和法兰西开战....
借助小型望远镜可以看清月球上的环形山.Lunar craters can be plainly seen with the aid of a small telescope.在月球的高地上留下无数环形山,有的直径达236千米.The lunar highlands are scarred by innumerable craters ranging up to 236 km in diameter.水星上的大环形山周围有很多小的环形山围...
他们考虑来自外部的感染公司的病毒, 他们设想黑客侵入到信息宝库中.They think of viruses that infect an organization from the outside. They envision hackers breaking into their information vaults.现在来自外部的结婚压力少了。Nowadays there are fewer extrinsic pressures...