W particle
W粒子
🧩 词语组成解析
🗣️ 情景例句
Why do prices always go up during Spring Festival?
为什么春节期间很多东西都会涨价？
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
Who's that?
那个人是谁？