The solution is degassed by alternately freezing, evacuating and thawing.通过交替的冻结 、 抽空和溶化来使溶液除气.The troops were severely mauled and lost a quarter of their strength before evacuating the island.部队遭到重创，从岛上撤退前损失了四分之一的兵力。The...
蜂鸣器突然相应地发出了一声响亮的长鸣。The buzzer suddenly responded in a long blast of sound.蜂鸣器在8点钟时响了.The buzzer went off at eight o'clock.你想讲话的时候就按蜂鸣器.Press the buzzer when you want to talk....
There was a raid on a bank by armed mobs yesterday.昨天发生了一起武装暴徒抢劫银行的事件.The act had a specific intent, to protect freed slaves from white mobs.这项法案有明确的目的，即保护被解放的奴隶免受白人暴民的伤害。Rowdy mobs gathered in the leading thoroughfares....