垂: hang down; droop; let fall弛: relax; loosen; slacken弛垂弛垂度: safty equipmentgoggles glasses and films sag垂弛张力: sag tension垂成: [书面语] (将近成功) drawing close to a successful conclusion; be approaching success or completion垂楚尔: trichūr垂沉: sag垂垂体前叶反应: anterior pituitary reaction垂部: lappet垂唇: hypostoma垂布: lappet垂唇 口后片 口下板: hypostome垂冰柱: icicle