一种想法的雏形the embryo of an idea现代自行车的雏形the prototype of the modern bicycle他的机械计算机是现代电子计算机的雏形.His mechanical calculating engines were the antecedents of the modern computer....
这男孩是他父母的命根子.The boy is the lifeblood of his parents.诗和艺术是她的命根子.Poetry and art are the breathe of life to her.经理说,顾客就是我们的命根子.The manager says that the customers are our lifeblood....
黄油、人造黄油和多脂鱼都含有丰富的维生素D。Butter, margarine, and oily fish are all good sources of vitamin D.浅海床提供了丰富的食物。The shallow sea bed yields up an abundance of food.把她的人生比作一次海上航行不足以说明她丰富的经历。The comparison of her life to a sea voyage ...