Those in mammalian cells, the cerebrosides and gangliosides, may perform similar functions.在哺乳动物细胞中脑磷脂和神经节苷脂可能执行同样的功能.Starfish contains different types of bioactive materials, such as proteins, enzymes, steroidal glycosi...
He had to cancel some engagements because of tiredness.他太累了，不得不取消一些约会。I have numerous engagements next week.下星期我有许多约会.Broadway was full of loafing thespians in search of next season's engagements.百老汇大街上挤满了闲荡的演员,在寻找下...
He finished his aperitif and tasted the wine the waiter had produced.他喝完开胃酒，又尝了点侍者端来的葡萄酒。No, thanks. We'll skip aperitif.不, 谢谢, 饭前酒免了吧!Recommendations: As an aperitif , mussels marinieres, crab cocktail, seafood, or...
He frequently donates large sums to charity.他常常向慈善机构捐赠大笔钱款。A substance donates protons to some other substance.一物质向其他物质提供质子.Substance X in turn donates its electron to an iron - containing protein called ferredoxin.X物质又将...