Obc
abbr. outer back cover 封底; on board checkout 在板校验; oscillating Baffle column 振动挡板柱（塔）; old brutal convict 时间长而令人痛苦的肺病
🗣️ 情景例句
But I think you two can have a good time together without me.
但我觉得， 我不去你们也会玩得很开心。
Treat it with respect.
请你放尊重点！
For one thing they keep the water clean.
一来，水下植物可以保持水的清洁。