Porphyrine
紫菜碱
🗣️ 情景例句
and talk to the bank.
且和银行谈一谈。
I usually feel timid in the presence of very bright people.
站在聪明人面前，我感到羞怯。
I've never been there.Have you ever been there, Ken?
我从未去过。肯，你去过吗？