S.-g.
[医] 萨-格二氏试验(梅毒絮凝反应)
🧩 词语组成解析
[医] 克, 龈的, 分生孢子的; 牛顿氏引力常数
🗣️ 情景例句
Yes.
是的。
It's up to us to help those in need.
我们有责任帮助那些有困难的人。
People who work in offices are frequently referred to as white-collar workers' for the simple reason that they usually wear a collar and tie to go to work.
坐办公室的之所以常常被称作“白领工人”，就是因为他们通常是穿着硬领白衬衫，系着领带去上班。