Arithmetic series
等差级数
🧩 词语组成解析
🗣️ 情景例句
Can you tell me how to get to Linden Street, in Riverdale?
你能告诉我怎么去Riverdale的林登街吗?
If it doesn't rain tomorrow,I think I'll go shopping.
如果明天不下雨，我将去购物。
The cave led back into the rockface and the earth by the entrance was dry.
岩洞迂回延伸到岩面里，靠近洞口的土是干的。