Atcc
abbr. 美国型培养菌种集（American Type Culture Collection）；航空航天交通控制中心
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
To build a house
成家
As long as all was still, the pen drew a straight line,
只要一切都是静止的，笔就会划出一条直线；