单词	I can sponsor him
释义	I can sponsor him. 我可以为他作保。
随便看	free radical lifetime free radical mass spectrometry free-radical mass spectrometry free radical mechanism free-radical Free-radical free radi-cal free radical acceptor free-radical acceptor free radical addition free-radical addition free radical aggregation Free radical and human health free radical assay technique free radical biology free-radical biology freeradical catalyst free radical catalyst Free radical-Cationic Hybrid free radical-cationic hybrid photoinitiators free radical chain free radical chain degradation free radical chain reaction free radical chain stopper freeradical chemistry