vain threat / promise etc

vain threat / promise etc literarya threat, promise etc that is not worrying because the person cannot do what they say they will空洞的威胁/承诺等—vainly adv:•The instructor struggled vainly to open his parachute.教官拼命想打开降落伞，但没有成功。

• there is little（或nothing）to choose between
• methylene blue
• sailor's champagne
• semitendinosus
• postposition
• boruga
• unrwas
• bear market
• darter
• staps
• Verticillium
• sequitur
• standardizings
• contradictory
• midyears
• irreligion
• social structure
• dark tent
• go in at one ear and out at the other
• meeknesses
• deregulatory
• roomage
• stream capture
• ebullioscopic
• rmes
• insnarers
• take a bow
• Baluchistan
• speech recognizer
• jerkwater
• desmolases
• spiderish
• andantinos
• scalene triangle
• misanthropes
• volcanoes
• phonings
• bookshelves
• beefwoods
• armistice
• extant
• in running/working order
• self-solicitude
• damyankee
• BAAB
• put this show on the road
• double negation
• demised
• sidelong
• frogeyed
• witlessly
• stars in your eyes
• panoptical
• instantised
• locked-oscillator detector
• geedunk
• I wouldn't be seen / caught dead
• gownsman
• on-off
• flash arc
• duodiode-triode
• pusztas
• bristle up
• calsequestrin
• secondary rainbow
• service reservoir
• column operations
• b.f.a
• poppyhead
• intracavity absorption spectroscopy
• (be) in evidence
• chicken hawk
• Arabian bird
• sentinelship
• beer scale
• slate-coloureds
• run its course
• distinguer
• the waterline
• monotheistically
• were
• quasicrystal
• aidful
• cisternas
• noninterventionalist
• be nicely left
• Baja california Sur
• AMPase
• edge-wear analysis
• orthotungstic acid
• comfort index
• bend dexter
• B-stage resin
• busker
• foregone
• tigging
• Yellow hammer State
• smelt
• fine feathers make fine birds
• scouse kettle