1. lead在OG/Prep上的用法 someone/something leads (someone) to something/do something 2. - possibility of something (OG10#26) - possible是一個common的adjective, 沒什麼idiom... - possibly是一個common的adverb, 沒什麼idiom... 3者只有詞性的不一樣, 意思上沒有不一樣 3. OG跟prep上沒有synchronize as a main verb的用法... Longman: synchronize something with something. 4. X or Y的單複看Y. 5. few修可數*含意*的東東 less修不可數*含意*的東東 scientific unit除外...for example, "less than 1 hour", "one item or less", "less than 5 lbs", etc small可修不/可數的東西