D and c
扩张子宫颈及刮宫（dilation and curettage）
🧩 词语组成解析
and
[ənd, ən,ænd]
conj. 和，与;而且;于是，然后;因此;
🗣️ 情景例句
But personally I believe a business letter should end with Very truly yours, not Sincerely.
还行，乔治。但是我个人相信一封商业信函应该以“敬上”结尾，而不是“谨启”。
He gave her his word that he would never be late again.
他向她保证，绝不再迟到。
This festival is a cheerful occasion, for on this day, the dead are said to return to their homes and they are welcomed by the living.
这个节日是个欢乐的日子，因为在这一天，据说死去的人要回到他们的家里来，活着的人则对他们表示欢迎。