She could ring for food and drink, laundry and sundry services.她可以打电话点餐，叫人来取要洗的衣服以及叫其他各种服务。He'd put his dirty laundry in the clothes basket.他会把自己的脏衣服扔进洗衣篮里。Before entering the bathroom, he emptied his dirty laundry ...
有许多种氨基酸人体自身不能合成.There are many amino acids that the body cannot synthesise itself.有许多种氨基酸人体自身不能合成。There are many amino acids that the body cannot synthesize itself.丙氨酸在转氨作用中似乎是更好的氨基酸.Alanine appears to be the preferred a...