Stac
abbr. 科技咨询委员会（Science and Technology Advisory Committee）
🗣️ 情景例句
and I think
我觉得
A merry heart goes all the way.
生性乐天，终身受用。
So, ask businesses on both sides of the Atlantic, why have two lots of tests where one would do?
因此，大西洋两岸的企业都在问，当一套测试可以解决问题时，为什么需要两套呢？