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stiffen
英/stˈɪfən/
美/ˈstɪfən/
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01v.
使变硬, 使僵硬, 使顽强, 使严厉
become stiff or stiffer; make stiff or stiffer; restrict
02v.
变粘, 变硬, 变强烈
become stiff or stiffer; make stiff or stiffer; restrict
WORD BY WORD
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become stiff or stiffer; make stiff or stiffer; restrict
become stiff or stiffer; make stiff or stiffer; restrict