Complement enzymes attack antigens by puncturing the cell membrane.补体酶通过刺穿细胞膜来攻击抗原.Some antigens, or combinations of antigens, are much more potent than others.某些抗原或者联合抗原可比其它抗原作用强得多.There are numerous inherited antigens ...
I read the poem time and again.我一遍又一遍地读这首诗.They inquired about the matter time and again.他们一再探问此事.She badgered her doctor time and again, pleading with him to do something.她屡屡缠着她的医生不放，求他做点什么。...
他想要抓住她，但她侧步闪开了。He made a grab for her but she sidestepped him.她用木底鞋砸向他时,他机敏地闪开了.He dodged cleverly when she threw her sabot at him.她用鞋子砸向他时,他机敏地闪开了.He dodged cleverly when she threw her shoe at him....
疵点可用超声波方法检测.Cracks can be detected by a method using ultrasonic waves.这只花瓶有个疵点.This vase has a chip.检查服装裁片的缝口牢度和车缝疵点并判断是否接受.Check the strength and defect of stitching, approval accept or not....
Shares ended 1.7 per cent firmer on the Frankfurt exchange.法兰克福交易所收盘时股票上涨了1.7%。The pound is firmer on the foreign exchange market.英镑在外汇市场上较前坚挺.The areas of consolidation are firmer than the surrounding lung.实变区域比周围的肺组织坚韧...