A dentist may decide to extract the tooth to prevent recurrent trouble...牙医可能会决定拔掉那颗牙，以免反复发作。I had to have two fillings at the dentist's today.我今天不得不在牙科诊所补了两颗牙。The dentist filled several cavities in my teeth.牙医给我的牙堵...
The thermometer registers 50 degrees.温度计上是五十度.Biolar shift registers are classified as unidirectional and bidirectional.双极型移位寄存器可分为单向和双向两种.Countless compounds are to be found in the industrial registers.在工业产品目录中还会出现无数的化合...
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.Mercury, polychlorinated biphenyls ( PCBs ) and chlordane are among the major contaminants found in Illinois fish.水银, 多氯联苯和氯丹是在伊利诺...