还没看到他们，我便听到他们穿过矮树丛过来的声音。I heard them coming, crashing through the undergrowth, before I saw them.一顶橄榄色帐篷扎在树丛当中。An olive-coloured tent stood within a thicket of trees.我们蹲在树丛里。We were crouching in the bushes....
二百五十多年前的惠更斯目镜今天还在广泛使用.The Huygens ocular , which dates back over 250 years is still in wide use today.此时场镜上的划痕和小点会在接目镜中看见.Then the scratches and spots on the field lens would be visible at the eye lens.在这两种仪器中, 物镜所成的象都是通...
The rescuers were beaten back by strong winds and currents.救援人员因风浪太大而被迫中断工作。In a warm-up game for the World Cup, Uruguay have beaten England.在世界杯热身赛中，乌拉圭队打败了英格兰队。They would look out through the cracks of their weather-be...