🧩 词语组成解析
penicillin
[,pɛnɪ'sɪlɪn]
n. 青霉素，盘尼西林;
potassium
[[pə'tæsiəm]]
n. 钾\\n[化] 钾K
🗣️ 情景例句
Don't you feel well?
你感觉不好吗？
You really don't have anything to apologize for.
你真的没什么可道歉的。
and there is a virtual limit on how long we can hope to remain alive,
我们所希望的长寿实际上是有限度的。