fence
[fɛns]
n. 柵欄、籬笆
例句

The cat walked on top of the garden fence.

那隻貓走在花園的籬笆上面。

maintain
[men`ten]
v. 維修、保養;維持、保持
例句

It is clear that your car has been poorly maintained.

很明顯的,你的車一直保養得很差。

negative
[`nɛgətɪv]
adj. 負面的;否定的
例句

I had a negative experience last time I was at the movie theater.

上次我在電影院有過一次負面的經驗。

collar
[`kɑlɚ]
n. 項圈、頸圈;衣領
例句

I bought my dog a blue-and-red collar.

我買了一個藍紅色的項圈給我的狗。