harden的意思
harden
基本释义
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v
使变硬
to become firm or stiff, or to make something firm or stiff
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v
变硬
to become firm or stiff, or to make something firm or stiff
例句
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It will take about 24 hours for the glue to harden.
胶水干透大约需要24小时。
近义词
vi 变硬，变坚固；变坚强；变冷酷
stiffen
同根词
adv
n
v
hardened 坚定，变硬（harden的过去分词）、hardening 硬化；使强壮（harden的ing形式）
