unbrace英美v. 放松;解开;松弛;不加支撑; 下弓弦;松弦现在分词:unbracing 过去式:unbraced 第三人称单数:unbraces 过去分词:unbraced 英英释义verbremove a brace or braces fromremove from tensionundo the ties ofThey untied the prisonerSynonym:untieunlace