Polybond
聚硫橡胶粘合剂
🗣️ 情景例句
Were you here last time on his birthday party?
上次你有没有参加他的生日舞会？
He is attending a conference now.
他正在出席会议。
You have to be able to check instructions.
你必须会查对说明。你必须会筹划工作。