所有不产奶的牛应从奶牛中清除出来.All passengers should be eliminated from dairy herds.那些牛产奶很多.The cows are milking well , ie giving large quantities of milk.那些母牛不产奶.The cows are dry , ie not producing milk....
The lighthouse beam was quite distinct in the gathering dusk.灯塔的光束在渐浓的暮色中清晰可见。The lighthouse was abeam of the ship.灯塔在船的正横方向.A lighthouse was flashing afar.灯塔在远处闪光.He was to keep watch in the lighthouse.该他到灯塔上值班。There wa...
They are terribly upset by the break-up of their parents' marriage.父母婚姻破裂让他们极度苦恼。Break up the chocolate and melt it.把巧克力弄碎，使其熔化。the break-up of their marriage他们婚姻的破裂...