Venus, Earth, and other planets also perturb Mercury's motion.金星, 地球和其他行星也使水星的运动受到摄动.Stellar passings can perturb the orbits of comets.行星的运行会使彗星的轨道发生扰动....
肺细胞约每周新老更替一次。Lung cells die and are replaced about once a week.昼夜更替.Day and night alternate.从事高等教育的人员新老更替极其缓慢。There has been very little renewal of personnel in higher education....
A test for telepathy with a similar device yielded a negative result.用类似装置对于传心术的试验得到负的结果.We are particularly interested in phenomena such as telepathy and levitation.我们对心灵感应及空中漂浮这样的现象特别有兴趣.Many of us find it very difficu...
The boss of the gambling house raked off 20 % for himself.赌场老板提取20%作为抽头.He really blundered when he insulted the boss's wife.当他侮辱老板的妻子时, 他真是犯了一个大错。The boss assigned his car to his creditor.那工头把自己的小汽车让与了债权人.Tom'...
The durable high-impact plastic case is water resistant to 100 feet.这种结实的高强度塑料盒子在水下100英尺以内是防水的。This varnish provides a durable finish.这种清漆可作耐久的罩面漆.These shoes are durable.这鞋禁穿....