an ace in the hole

an ace in the hole

• • (纸牌戏中)正面朝下的一张A牌
  • [美国俚语]秘藏的王牌，秘密王牌；备而未用的人力(或物力)，备用的应急办法(或手段)，应急法宝，秘藏的法宝，锦囊妙计；杀手锏
  • 在患难中可信赖的朋友，可共患难的朋友

• white letter
• psilophyte
• imido-
• roll-on ship
• thulite
• adores
• vegetably
• what the
• grits
• acrylic
• herborize
• cassette recorder / tape recorder / video recorder etc
• Dow-Jones index
• -pteran
• parking ticket
• tataries
• black mangrove
• on first-name terms
• John Doe
• etherealization
• southeastwardly
• semimicroanalyses
• back coming
• hydrochloric acids
• under active consideration
• Arawakans
• solatium
• thromboembolus
• Lister, Joseph
• ciaos
• sigmoid colons
• circumvent
• bilestone
• erogenic
• seneciosis
• be into sth
• give sb a blank cheque
• boiling range
• in the shell
• dermatoglyphs
• spit或spat
• tell it not in Gath
• buttonhold
• Ulvaceae
• news medias
• waterside
• ion propulsion
• whinnyings
• falling-outs
• common divisor
• preludio
• witherings
• roughness
• rarefaction
• Hallam, Henry
• double-reeds
• hyposcope
• Eastern City
• gay deceivers
• immigrates
• put the shoes on the right (或 proper) foot
• followest
• give someone a tinkle
• specific gravity
• santa barbaras
• drive shafts
• Mickey Mousing
• chlorinated hydrocarbon
• first law of thermodynamics
• bring sth to its knees
• ichthyosaurians
• close in
• Mornas
• cryptogamists
• have a heart of stone
• horned
• rubrenes
• such a one
• scalar fields
• cowlicks
• broncobusting
• -itious
• cause list
• coinfections
• custard cup
• a nice kettle of fish
• digital lock
• organ
• rubellite
• parameres
• synonymizing
• cyan filter
• gender-neutral
• reinfusion
• aunthood
• mundified
• chrismatory
• two-wheeler
• multiple aim point system
• in sb's/sth's honour