She was so tired, her eyelids were beginning to droop.她太疲倦了，眼睑开始往下垂。Don't let your spirits droop.不要萎靡不振.See how they hang their heads and droop, and wither.看!它们不是低着头,弯下腰, 就要枯萎了吗?...
A high proportion of the new arrivals are skilled professionals.新来的人中很大一部分是技术熟练的专业人士。She had her hands full with new arrivals.她忙于应付新来的人。Arrivals continue to be abundant.到货仍然源源不断....
Their solution was to isolate specific clones of B cells and fuse them with cancer cells.他们的解决方案是分离出特定的B细胞克隆，然后将它们和癌细胞结合。Papain and chymopapain can coagulate soybean protein isolate ( SPI ) , both of them are cysteine pr...