Polycladin
波来克黄素
🗣️ 情景例句
Excuse me, but may I ask how old you are?
对不起， 我能问一下你多大了吗？
We're becoming a good band.
咱们会逐渐成为一支出色的乐队。
It was rather like an exhibition of prehistoric electronic equipment.
这儿倒像是在展览古老的电子设备。