R.f.t. classes
[医] Rh分组(血族)
🧩 词语组成解析
[医] 右额横(胎位)
n. 级别, 阶级（class复数形式）
🗣️ 情景例句
I really enjoyed the meal.
我真的吃得很高兴。
I don't feel up to that.
我觉得不能胜任那工作。
These were the so-called mainframe machines.
它们被称为主机。