That's fine because all perihelic oppositions of Mars are spectacular.但它和最近的几次区别不大,因为火星所有的近日对冲都很壮观.He tried his best to bear down all of his oppositions.他尽全力击败一切反对意见.This will serve as a model for collective opposit...
When he got older I nicknamed him Little Alf.当他大一点时，我给他起了个“小阿尔夫”的绰号。'The human sound - track'he nicknamed her in his own mind.在心里他给她个绰号,就叫"人体录音带 ".People said that he had jaundice and urchins nicknamed him " Ye...
a choleric outburst愤怒的爆发There was an outburst of squeals from the cage.铁笼子里传来一阵吱吱的叫声....this first great outburst of nationalist student protest.首次大规模爆发的民族主义学生抗议活动He was prompted to a rare outburst of feeling.他被惹得情绪非常激动，...
氚是最和缓的放射性同位素之一.Tritium is one of the mildest radioactive isotopes.更为活跃的是氢的较重同位素, 氘和氚.More reactive are the heavier isotopes of hydrogen, deuterium and tritium.氚肺扫描可能有助于早期诊断吸入性损伤.Xenon lung scans may be helpful in the ear...