Most bats navigate by echolocation.
大多数蝙蝠通过回声定位飞行。
Wind is a current of air caused by a vacuum caused by hot air rising.
风是由热空气上升产生真空而引起的空气流动。
6乘以2等于12。
Fortunately, volunteers are not motivated by self-interest, but by altruism.
幸运的是，志愿者们不是被自身利益而是被利他主义推动。
They've increased the price by 50%.
他们已经把价格提高了50%。
Output should triple by next year.
到明年产量应增至三倍。
The play was directed by Mike Johnson, assisted by Sharon Gale.
该剧由迈克•约翰逊导演，沙伦•盖尔为助理导演。
Julius Caesar was murdered by a group of conspirators famously headed by Marcus Junius Brutus.
尤利乌斯·凯撒被以人所共知的马库斯·朱尼厄斯·布鲁特斯为首脑的一伙谋反者谋杀了。
He was a printer by trade and naturalist by avocation.
他在印刷厂工作，同时是个博物学爱好者。
他们在烛光下进餐。
They are staffed by volunteers.
他们的员工都是志愿者。
利润突降50%以上。
She was ambushed by reporters.
记者突然一拥而上采访她。
The President's motorcade glided by.
总统的车队一溜烟开了过去。
She appeared unworried by criticism.
她看上去并不在乎挨批评。
这事星期五之前做不了。
我们将车停放在路旁。
我们借着星光走回家。
我们只是互通电邮。
Pedestrian accidents are down by 5%.
行人受伤事故下降了5%。
She had overshot by 20 metres.
她超过了20米。
He was floored by the announcement.
他被这个通告震惊得不知所措。
I wouldn't go there by choice.
让我选择，我不会去那里。
The house is backed by fields.
房子的后面是田野。
The changes were approved by referendum.
全民投票赞同这些变革。
He remained unruffled by their accusations.
对于他们的指控他处之泰然。
Investors were spooked by slowing economies.
投资者们因经济增长缓慢而变得紧张。
She seemed unperturbed by the news.
她听到这消息似乎并不惊慌。
A convoy of trucks rattled by.
卡车队隆隆驶过。
A convoy of trucks rattled by.
卡车队隆隆驶过。
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