R.s.a.
[医] 右骶前(胎位)
🗣️ 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…
He has been to America.
他曾去过美国。[表示曾经有过的经验]
Before she grew old, Aunt Harriet used to entertain lavishly.
哈丽特姑妈年轻时，喜欢大摆宴席，招待宾客。