The plant is operated entirely by remote control and monitored by closed circuit television or periscope.这个工厂完全用遥控操作,而且用封闭电路电视或展望镜来监视.Researchers observed the children via closed - circuit television and recorded their a...
德娜买了几卷看起来非常次的丝绸。Dena bought rolls of silk that seemed ridiculously cheap.她的丝绸连衣裙是天蓝色的，和她眼睛的颜色一样。Her silk dress was sky-blue, the colour of her eyes.丝绸和羊毛之类的纯天然织物比合成纤维的保暖性更好。Natural fabrics like silk and wool are better i...
黑压压的一大群蜜蜂从蜂巢中飞出来。A dark cloud of bees comes swarming out of the hive.一大群人聚集在码头上，为他们送别。A large group had gathered on the quayside to see them off.尽管天色已晚，仍有一大群人聚集到了一起。A large crowd had gathered despite the lateness of the ...