他的外科手术器械是一把刀和一把钳子。His surgical instruments were a knife and a pair of pincers.给外科手术器械消毒to sterilize surgical instruments所有的外科手术器械在使用之前,必须消毒.All surgical instruments must be sterilised before use....
伤口沾染了细菌.The wound was infected with germs.他怒斥皮特，指责他沾染毒品。He turned on Pete and accused him of being mixed up in drugs.这样就可以使她的爱不至于沾染上有所贪图的色彩.This put her affection out of suspicion of mercenary ends....