🧩 词语组成解析
math
[mæθ]
n. 数学（等于mathematics）;
🗣️ 情景例句
Ellen, why don't you go out to the backyard
Ellen，何不去院子
There is nothing either good or bad, but thinking makes it so.
事情本无好与坏，全在自己怎么想。
Yes, of course I can.
可以，当然可以。