She had pale thin yellow hair she pulled back into a bun.她把一头稀疏的浅黄色头发向后梳，挽成了个圆髻。She was sitting at the kitchen table eating a currant bun.她正坐在餐桌旁，吃着葡萄干圆面包。She wore her hair in a bun.她盘了个发髻。...
食盐由40%的钠和60%的氯化物构成。Common salt is made up of 40% sodium and 60% chloride.普通食盐是钠和氯的化合物。Common salt is a compound of sodium and chlorine.食盐是钠和氯的复合物.Common salt is a compound of sodium and chlorine....