Reflection of a beam of light on the diaphragm falls on a phototransistor.经膜片反射的光束照射到光敏管上.A beam of light produced by a laser can weld metals.激光器发生的光束可以焊接金属.A beam of light produced a laser can weld metals.激光器发生的光束可以焊接金属...
Cracks, bulges, crumbling pointing and damp patches mean trouble.裂缝、凸起、剥落的勾缝和湿斑都意味着存在问题。The paint was drying in irregular patches.油漆一片片地慢慢变干了。The dog's coat is white with black patches.这只狗的皮毛白色中带有黑斑....
Valerie earned letters in three sports: volleyball, basketball, and field hockey.瓦莱丽在排球、篮球和曲棍球三个项目上获得了佩戴校名首字母标志的荣誉。Great Britain's hockey players were outmanoeuvred by Germany.英国曲棍球队不敌德国队。He injured his knee playing...
你理应休息一下，出去好好玩玩。Take a well-earned rest and go out and enjoy yourself.女性必须获得她们理应得到的高薪工作培训。Women must receive their fair share of training for good-paying jobs.我们理应在电脑上查清他的资料。We ought to check him out on the computer....