Blk
abbr. 黑色（black）；主动脉排空系数；坯料（blank）；空白表格（blank form）
🗣️ 情景例句
She always talks to me as though she were my sister.
她总是以我妹妹的口气跟我说话。
How old are you?
你多大了？
I like listening to the radio, but I can't spend much time on it.
我喜欢听收音机，但不能花太多的时间。