an instant的用法和樣例：
例句
- Help came not an instant too soon.
援助來(lái)得正是時(shí)候。 - Just for an instant I thought he was going to refuse.
我腦中有一閃念，以為他要拒絕了。 - I shall be back in an instant.
我馬上就回來(lái)。 - I'll be with you in an instant.
我立刻就去找你。 - I took an instant dislike to him.
我一見(jiàn)他就不喜歡。 - I'll be back in an instant.
我馬上就回來(lái)。
