Orientable

[計] 可定向的

??? 情景例句

I would like to send this by registered mail, please.
我想把這封信掛號寄出。
I've got a headache.
我頭痛。
It's time you went to bed.
你早就該睡覺了。
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?? 更多 O 開頭的單詞

okey [ou'kei]
ossify 'ɑs?fa?
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