Pollock's operation
[医] 波洛克氏手术(膝关节切肢术)
🧩 词语组成解析
🗣️ 情景例句
I didn't have that when Richard and Susan were born.
在Richard和Susan出生时我可没有人帮忙。
I usually go to bed at about midnight.
我通常在大约半夜睡觉。
Sorry.
对不起。