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 Earth orbits in an ellipse.地球轨道呈椭圆形。The man - made satellite orbits the earth every 48 hours.那颗人造卫星每48小时绕地球轨道运行一周.They knew each other by sight, but their orbits did not touch.他们见面认识, 但各自的生活圈子互不搭界....
She was besieged by the press and the public.她被媒体和公众纠缠不休。The Afghan air force was using helicopters to supply the besieged town.阿富汗空军正用直升机向被围城镇提供补给。Paris was besieged for four months and forced to surrender.巴黎被围困了四个月后被迫投...
It was found coincidentally following the detection of hypopharyngeal carcinoma.我们提出一下咽癌同时合并有前臂皮肤远处转移之病例.Objective : To improve the early diagnosis in hypopharyngeal malignant tumor.目的: 提高下咽恶性肿瘤的早期诊断.The most common dist...
要确保每天的钙摄入量。Be sure you get your daily quota of calcium.钙可能有助于预防结肠癌。Calcium may aid in the prevention of colon cancer.奶制品富含钙与蛋白质。Milk products are an excellent source of calcium and protein....
He started to hack away at the tree bark.他开始砍树皮。Smith tries to convince them that he can hack it as a police chief.史密斯试图让他们相信，作为警长自己能应付得了。He made a hack at the log.他朝圆木上砍了一下.Osbaldiston jabbed his finger at it, harking h...
I hereby acknowledge receipt of your letter of 25July.特此告知贵方7月25日的来函收悉。We, the people of Indonesia, hereby declare Indonesia’s independence.吾印度尼西亚公民特此宣布印度尼西亚独立。I hereby acknowledge receipt of your letter of 25 July.特此告知贵...
Microbicide a major approach to preventing sexual transmission of HIV.杀微生物剂的应用是预防艾滋病毒性传播的重要途径.All donated blood is screened for HIV.所献血液一律要经过人体免疫缺陷病毒的筛查。I translated this as a mad desire to lock up every single person wi...
At the swimming pool I put my clothes in a locker.在游泳池我把衣服锁在小柜里.A man in the gangway suddenly stood up to reach for something in the overhead locker.靠通道坐的一名男子突然起身去拿头顶上方行李舱里的什么东西。It was George who first proposed that we d...