燕巢于幕 yàncháoyúmù dangerous situation Origin Definitions Defs Strokes Stroke Words Sentences Sents 燕巢 yàncháo swallow's nest the nest of a swallow bird于 於 yú preposition in Indicates a location, scope, or time; equivalent to 在 zài幕 mù noun curtain curtain; screen; canopy; tent