The official number of people carrying the AIDS virus is low.艾滋病病毒携带者的官方数字并不高。Hackers are said to have started a computer virus.据说黑客们已经开始传播一种新的电脑病毒。The repairman reported back that the computer had a virus.修理工报告说电脑染了病毒。...
桦树和橡树密生于狭谷中.Birches and oaks feathered the narrow ravines.狭谷口有个小村庄.There is a hamlet on the threshold of a narrow valley.小汽车迂回盘旋,[穿过]村庄, [爬越]狭谷,沿着一条因解冻而涨水的山溪行驶.The car wound through the village and up a narrow valley, fo...