Spiking
[化] 掺加; 掺加示踪剂
🗣️ 情景例句
I'm Elsa Tobin. How do you do?
我叫Elsa Tobin ，你好。
He has not come in yet.
他还没有来。
That doesn't sound like modern printing.
这听起来不象是现代印刷术呀。