Spiking
[化] 掺加; 掺加示踪剂
🗣️ 情景例句
Tom doesn't enjoy going to school.
汤姆不喜欢上学。
Fall sick and you will see who is your friend and who is not.
困难见友情。
Good idea! It's much better than having classes! Can I go, too?
好主意！这比上课好得多！我也可以去吗？