Sdj
[医][=sigmoid-descending colon junction]乙状结肠降结肠交接处
🗣️ 情景例句
Don't worry, be happy.
别担心，开心点。
Congratulations on your promotion.
我恭喜你晋升了。
Even if a piped water supply is safe at its source,
既使管道供水系统在水源处是安全的，