Expounder
n. 解释者
✅ 同义词
🗣️ 情景例句
I'll work on my computer.
我要练电脑。
Here is a price list together with a booklet illustrating our products.
这儿有一份价目单和介绍说明我方产品的小册子。
My grammar is improving, but I find idioms and useful expressions hard to learn.
我的语法在进步，但我发现习语和有用表达很难学。