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
Sorry to keep after you, but could you tell me...
对不起，又打扰你了，你能告诉我…
Man's best plans often miscrarry.
神机妙算，常常失算。
Yes, it is an old photo of my family.
是的，是我们家的一张老照片。