(as) tough as nails

(as) tough as old ˈboots|(as) tough as ˈnails(informal)1very strong and able to deal successfully with difficult conditions or situations很强壮；坚韧不拔；雷打不动2not feeling or showing any emotion铁石心肠；不为所动

• monatomic
• power users
• ablutionary
• have the monkey on one's back
• freeze out
• mycobacteria
• someway
• sand perch
• Pareto optimality
• pop.
• renegotiating
• kielbasy
• angioparesis
• news service
• liquid-sorbent dehumidifier
• biuret test
• contrives
• hamperer
• basic service
• tap off
• hold sb in respect
• plasma radiation
• Thiobacteriaceae
• on the books
• dope story
• unmanliest
• there is no cause for
• real (或 pure) jam
• abstract science
• masonites
• treck
• take up an attitude
• prevent defense
• diplomatization
• Porter, Rodney Robert
• the ball of the thumb
• technical marketing
• mammary lymphatic plexus
• mastodynia
• make an agreement with
• hopping conduction
• guacharoes
• ultraminiaturized
• soft currency
• nonlinear system
• neanthropic
• cuticula
• schadenfreuder
• poughite
• fibrinoids
• cranberry trees
• protective relay
• molten salt reactor
• doyens
• providings
• evoking
• Berman-Moorhead locator
• salt lick
• glandular
• discontinuity distribution
• anestrum
• empathize
• japanners
• credit hours
• tholeiite
• run a tight ship
• index set
• smooth things
• ghee
• amplitude modulation
• lepidopterons
• blastocyte
• Dust Separators
• Lord Justice General
• gyrodynamics
• antifoulings
• reacter
• anti-europeans
• the enemy
• spadefoot
• bank balance
• clubbed, clubbing
• dance drama
• parallelogram
• remaining life
• sb is all wet
• anglepoises
• random variable
• Lord President
• Gnosticize
• washer-drier
• beat someone on the post
• offer something up
• dress uniform
• PCIs
• hardscrabble
• torsional angle
• mosaicisms
• CFA
• the envy of