the bottom drops/falls out (of sth)

the bottom drops/falls out (of sth)people stop buying or using the products of a particular industry（某行业）产品滞销；销量暴跌The bottom has fallen out of the travel market.旅游市场出现了萧条局面。

• alveolar macrophage
• clyses
• upon one's word of honour
• toxic neuritis
• Mercator sailing
• pachytene
• lose your temper
• keep yourself busy
• choreas
• be sporting sth
• gabardines
• tinier
• representation allowance
• thermal reactors
• lumpfishes
• be perfection
• deoxygenise
• muntined
• Holy Trinity
• secondaries
• tactically
• eyeopener
• wrigglingly
• croakers
• temporization
• fightbacks
• freehold
• shallops
• punditheid
• chargelin
• currency cocktail
• molecular physics
• Gretna marriage
• be too big for one's shoes
• telecomm
• dromomania
• pseudoporphyritic
• minute hand
• angle bar
• prosodeme
• suber
• choke ring
• descriptive bibliography
• albanite
• attitude (control) jet
• longyi
• ethidium bromide
• oneiromancers
• douanes
• mantra
• the very same
• assessor of the vice-chanceller
• sess
• shuttle bombing
• macula
• under the charge of someone
• adulterated
• hydraulic pumping
• drive pulley
• bloaters
• makeup water
• perishable
• lugger
• upgradabilities
• cyanocobalamin
• keep something back
• as / so far as I'm concerned
• sexploiters
• give sb a dig
• energy balance
• grand piano
• research libraries
• give someone a hot time of it
• genu valgums
• Calcarea
• peace campaigner
• requiring
• suffer a default
• ungluing
• opinionative
• sedated
• calligraphic
• lay sth to rest
• egocentricities
• haute boutique
• home entertainment
• put sb at a stand
• like a drowned mouse
• jollify
• concomitancies
• lambdoidal
• hop-pickers
• Antioch process
• interposable
• acromicrias
• advanced directives
• key of a romance
• Meyerbeer, Giacomo
• fatherer
• change horses in the middle of a stream