Erysiphe
n. 白粉属；白粉菌属
🗣️ 情景例句
Everyone is expected to stick to the rules.
每个人都要遵守规则。
You should wear a heavy coat, It's below zero today.
你应该穿一件厚大衣，因为今天在零度以下。
What are you doing? he asked. I'm cutting this tree up, answered the woodcutter.
“你在做什么？”他问。“我在把这棵树砍断，”伐木工人回答道。