| adj 用法:
1 made or fastened so that water cannot get in or out 防止水进入或流出的; 水密的:
a watertight compartment, joint, seal 水密室、 水密接合、水密封. 用法:
2 (fig 比喻) (a) (of an excuse or alibi) impossible to disprove （指借口或不在犯罪现场的申辩）无懈可击的.
(b) (of an agreement) drawn up so that there is no chance of anyone misunderstanding or avoiding any part of it （指协议）严密的, 无漏洞的. |