Sca
abbr. 美国科学俱乐部联合会（Science Clubs of America）
🗣️ 情景例句
Can't you do something about it?
你就不能想点办法吗？
You're welcome.
不客气。
Do you think you'll be able to go to sleep right away?
你认为你马上就能睡着吗？