set one’s face like a flint

set one’s face like a flint面色坚决;采取坚决态度：The faulty mischievous pupil asked his teacher to excuse him，but the teacher set his face like a flint and insisted on blaming him.那犯错误的顽皮小学生要求他的老师宽恕他，但他的老师面色坚决，坚持要处罚他。

• lead sodium thiosulfate
• flue dust
• pianos
• fluorobenzenes
• brunt
• helper factor
• cachalots
• cocooning
• overthrust nappe
• extrapleural
• Scopeumatidae
• rumbly
• rose oils
• Turco-
• C.I.T.
• immersion heaters
• Shining Paths Party
• ribonucleases
• worker-directors
• have a monkey on one's back
• in dribs and drabs
• cis-
• elasticas
• give advice to
• sidekick
• touch systems
• unaccustomed to (doing) sth
• pinch running
• kitchen physic
• knock someone bandy
• instruction address register
• Yugo
• flamencoes
• Dale, Sir Thomas
• valedictions
• poll evil
• criterion-referenced test
• conglutination
• at variance with
• with an eye for
• Lincoln rocker
• pass musters
• Propulsives
• heliacally
• coal-whippers
• hair restorer
• exting
• insipid
• oxygenations
• such as it is（或 they are）
• petter
• heavy mass
• cut from the same cloth
• response set
• baby's public-house
• scrubbings
• potassium undecylenate
• cruer
• imprimis
• reciprocates
• make hay of
• adequacies
• frequency factor
• dancery
• compositional maturity
• tucotuco
• out of whole cloth
• radiation sickness
• Gdynia
• qualitative analysis
• pheno-
• appetences
• run sb/sth↔over
• Ganges
• appear at
• laicize
• undercharacterizing
• stretchies
• spongioplasm
• Planck oscillator
• show round
• heterocycle
• water softeners
• when / if it comes to the point
• character printer
• gallamine triethiodide
• break dancer
• united kingdoms
• jacobinic
• cove beach
• OTOLOGICALS
• bed-blocker
• round here
• ustolls
• dobbins
• diethylstilbestrol
• Sybaritically
• pawky
• prismatoids
• yoke together