Grecc
abbr. Geriatric Research; Education; and Clinical Center (Seattle) 老年医学研究; GRIN rod external coupled cavity (laser) 缓变折射率棒状外耦合腔（激光器）
🗣️ 情景例句
or else my father will get really angry.
要不然我爸爸会很生气。
Oh, thank you.
噢，谢谢了。
New jobs are needed because a number of people are out of work.
因为许多人没有工作，所以需要为他们提供就业机会。