戴夫背部拉伤，几乎没法踢球。Dave pulled a back muscle and could barely kick the ball.感觉一下腰背部皮肤的柔滑。Feel how soft the skin is in the small of the back.我的胳膊很累，背部肌肉紧绷得难受。My arms are tired, and my back is tense....
Don't be afraid to haggle: for the moment, it's a buyer's market...别怕还价，现在是买方市场。He demanded payment of the buyer.他要求买方付款。As a rule, the buyer is responsible for chartering a ship or booking the shipping sp...
Male albatrosses share in the incubation of eggs.雄性信天翁参与孵卵。Albatrosses drink salt water, as do some other sea birds.信天翁喝咸水, 同其它一些海鸟一样.However , these vast distances increase the albatrosses'chance of encountering a ...