Polectron
聚乙烯咔唑树脂
🗣️ 情景例句
The scam they were running left many people penniless.
他们的这场骗局让人们分文不剩。
Do you usually do arithmetic on Sunday?
你通常在星期日做算术吗？
You must have been driving at seventy miles an hour.
你刚才一定是以每小时70英里的速度开车。