Its hairy body suggests a mammal.它毛茸茸的身体表明它是哺乳动物。The function of a mammal's fur is to insulate the body.哺乳动物皮毛的功能在于使身体保温.A whale is a kind of mammal.鲸是一种哺乳动物....
The prospect of facing the team again in the semi-final had everyone quaking in their boots.一想到在半决赛时又要和那个队相遇,大家就担心得要命。Our house is quaking.我们的房屋在震动。I just stood there quaking with fear...我只是站在那儿，吓得直哆嗦。If you stand up str...
Alastair has a bad back so we have a hard bed.阿拉斯泰尔背部有毛病，所以我们睡硬板床。Alastair: I went to a piano recital yesterday evening.阿拉斯泰: 我昨晚去听钢琴独奏.Alastair: A new, young pianist from the Czech Republic called Irina Dubcek.阿拉斯泰: 是个刚...