Bb
abbr. 滾珠軸承（ball bearing）；鉛筆芯（double black）
??? 情景例句
No way.
不可能
You look tired. Have you been getting enough sleep?
你似乎累了。睡眠充足嗎？
Take me to the airport，please.
請(qǐng)送我去機(jī)場(chǎng)。