WORD BY WORD
harden
英/hˈɑːdən/
美/ˈhɑɹdən/
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01v.
使变硬, 使坚强, 使冷酷
become hard or harder; make hard or harder
02v.
变硬, 变冷酷
become hard or harder; make hard or harder
WORD BY WORD
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become hard or harder; make hard or harder
become hard or harder; make hard or harder