put someone on their mettle

put someone on their mettle (of a demanding situation) test someone's ability to face difficulties （严峻形势）使奋发, 激励某人战胜困难。

• pedophilias
• billet car
• stuffs
• punitively
• yaks
• wheedlingly
• gummier
• Jacobinized
• celebratory
• timber trolley
• sexdecillion
• climes
• Sudaneses
• allotropes
• asthenies
• vermiculate
• airsicknesses
• omer
• subordinating conjunction
• accessory apartment
• crystal headphone
• lent
• Hobbesians
• ambientes
• Carver.
• gests
• apocopations
• line of inbreeding
• test function
• gang-rapes
• toxic anemia
• zooflagellate
• Europeanised
• low-teches
• vers
• yearning
• composite number
• chortens
• write in (或 on) water
• splenial
• allusion
• rummagings
• tuned-grid tuned-anode oscillator
• berthas
• inflict ... on
• window shades
• lawn bowling
• flange nut
• decollating
• cotransformations
• Peabody, Endicott
• in one’s teens
• rabies virus
• five hundreds
• advisability
• regrindings
• prompted
• melitrioses
• interrogee
• schlimazel
• curtailers
• assr.
• sim.
• expressiveness
• model scale
• gynocritcism
• power factor
• holding point
• Hollywood bed
• swine
• Lagrangian current measurement
• retinacular
• dishclout
• new-mown
• beggarhood
• phidiass
• puffed-up
• I like that
• sequelae
• pagoda tree
• Sabbaths
• in countenance
• database server
• echo-ranging sonar
• firm up sth
• know as
• Ophioglossidae
• glost firing
• plasmasphere
• son of shame
• methodisms
• quotably
• algorithmic language
• uranopilite
• sexual behavior
• provenly
• left stage
• off the bat
• show/take/a fair/light pair of heels
• forted