Polybenzothiazole
[化] 聚苯并噻唑
🗣️ 情景例句
Say hi to your dad for me, and drive safely.
路上小心开车，并请向代我向令尊问好。
Courtesy costs nothing.
谦虚恭敬，不用分文。
Hello, Zhou Lan. This is Bruce.
你好，周兰。我是布鲁斯。