他从未表现出他前任的那种近乎傲慢的自信。He has never exhibited the self-confidence, bordering on arrogance, of his predecessor.晚上的演出很糟，所有人都缩手缩脚，显得很不自信。The evening show was terrible, with hesitant unsure performances from all.他们感到要为自己加油打气，自信...
"Third World" is an abstraction, a form of shorthand.“第三世界”是个抽象概念，是一种简称。The latter arises from abstraction of the somewhat lesser activated C - H bond in the dioxolane.后者是由二氧杂环戊烷中活化较弱的C -H 键离解而产生的.Is it worth fighting a ...
The virus mutates in the carrier's body.病毒会在携带者体内发生变异。In the worst - case scenario, UV light mutates DNA, leading to premature aging or skin cancer.在最差的情况下, 紫外线能使DNA发生突变, 于是导致提前老化或皮肤癌.The virus mutates quickly and c...