pesticide : 殺蟲劑n.
vinegar : 醋 n.
so 和 therefore 怎麼用?so 是連結詞:連接兩個句子Therefore 是副詞:不能連接兩個句子https://tw.blog.voicetube.com/archives/43197
36. Vinegar can also be used to keep pes..-阿摩線上測驗