成语名称:大厦将倾:成语近义: 危在旦夕(wēi zài dàn xī):形容危险就在眼前。旦夕:早晨和晚上;指很短时间之内。大厦将颠(dà shà jiāng diān):喻情势危急,频临崩溃。成语反义: 坚不可摧(jiān bù kě...