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单词
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释义
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[ˈɔpʃənəl]
adj.
1.
■
任选的; 随意的; 非强制的
optional subjects
选修课
It is optional with you.
那是你的自由。
Attendance at the lecture is optional.
这一讲座可随意参加。
词性变化
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[ˈɔpʃənəl]
n.
1.
■
[美]选修科
继承用法
optionally
adv.
随便看
(反霸权) oppose hegemonism:
(发公文) send an official communication to other organizations
(发出的同一个命令) a general [circular] order
(发呆) stare blankly; be in a daze; be stupefied
(发怒时瞪眼睛) angry stare
(发怒) flush with anger; get angry:
(发怒) see red; become infuriated
(发扬) carry forward; develop
(发挥) make the most of; make full use of; bring into full play:
(发现) find; detect; realize; discover:
(发生冲突) clash; squabble
(发电报来) send a telegram here; inform by telegram
(发电机)motor generator
(发网) hairnet
(发落; 惩治) punish:
(发音不清楚的人) lisper
(叔父) father's younger brother; uncle
(取其精华, 去其糟粕) develop what is useful or healthy and discard what is not
(取样器) a sharp-pointed metal tube used to extract samples of grains, etc. from sacks
(取消) dissolve; disband:
(取熔融玻璃用的) pontil
(受有封号的贵妇) mandated woman
(受水淹的地区) inundated area:
(受润泽; 沉浸在) bathe; immerse:
(受责备) get a talking-to; be told off; get a dressing down
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更新时间:2026/8/15 12:08:19