dry run

(infml 口) rehearsal or practice, eg for a ceremony or procedure 演习, 排练（如为典礼或礼仪）: Let's do/have a dry run. 我们来排练一下.

drumhead, drummer, drumming, drumstick, drunk, drunkard, drunken, drunkenly, drunkenness, drunkometer, drupe, dry, dry battery, dry cell, dry dock, dry goods, dry ice, dry land, dry measure, dry rot, dry up, dry-clean, dry-nurse, dry-shod, dry-walling, drying, dryness, drystone, DSc, DSO, DT, dual, dual carriageway, dual-control, dual-purpose, duality, dub, dubbin, dubiety, dubious,