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
And the Kennedy Center for the Performing Arts in Washington.
还有位于华盛顿的甘迪表演艺术中心。
On many farms you'll find cows and chickens.
在许多农场上你将发现奶牛和鸡。
Every day he does the same thing. Why doesn't he use the lift for the last three floors?
每天他都这样度过。为什么上最后3层楼他不用电梯呢？