Tpb
[医][=tetraphenylbacteriochlorin]四苯基菌绿素
🗣️ 情景例句
and sometimes there isn't.
有时候没有。
Politeness costs nothing and gains everything.
礼貌不费分文而可赢得一切。
I can't get home so early, Dad!
这么早我到不了家，爸爸！