(TTS發音) 1. move indoors進入（室內）
A servant opened the door and we went in. 僕人開了門，我們就進去了。
2. take an active part加入
A tennis tournament took place in our school yesterday，but I didn't go in. 網球聯賽昨天在我校舉行，但我沒參加。
3. fit in（a space）適合于（某處）
An ordinary nail won't go in a brick wall. 一般釘子釘不進磚牆去。
4. be understood被理解
I keep trying to understand how a car engine works，but it doesn't seem to go in；am I stupid something？我一直很想了解一下汽車發動機的工作原理，但好象弄不懂。我是笨還是怎麼的？
5. （of the sun，etc. ）disappear behind clouds（太陽等）被雲遮蔽
At this time of year，when the sun goes in，it is suddenly much colder. 每年這個時候，當雲層遮住陽光，天氣突然間就冷多了。
