常見例句用作名詞 (n.)They contrived a mask against poison gas.他們?cè)O(shè)計(jì)了一種防毒麪具。Rioters donned handkerchiefs as gas masks.暴亂者紥上手帕捂住口鼻作爲(wèi)防毒麪具。 返回 gas-mask