请输入您要查询的英文单词:
单词
toughen
释义
tough·en
(t
ŭ
f
ə
n)
tr. & intr.v.
tough·ened
,
tough·en·ing
,
tough·ens
To make or become tough.
See Synonyms at
harden.
tough
en·er
n.
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"Al."
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更新时间:2026/3/5 7:20:57