不定

她将离开一段时间，期限不定。

She will be away for the indefinite future .

a/an是不定冠词，the是定冠词。

" a / an " is the indefinite article ," the " is the definite article .

她的情绪总是变幻不定——时而欢喜，时而忧伤。

Her moods kept changing ─ now happy , now sad .

船身摇摆不定，让我觉得恶心。

The swaying motion of the ship was making me feel seasick .

我拿不定主意邀请谁。

I 'm in a dither about who to invite .

帕特里克漂泊不定的生活方式使他在伦敦和洛杉矶之间奔波。

Patrick 's roving lifestyle takes him between London and Los Angeles .

“我永远也搞不定。”他绝望地说。

' I 'll never manage it , ' he said hopelessly .

下一步还不定会发生什么事。

There 's no telling what will happen next .

我还拿不定主意投谁的票。

I 'm still undecided who to vote for .

昨天总统第一次在这个问题上表现得有些摇摆不定。

Yesterday the president showed the first signs of wobbling over the issue .

他显然心烦意乱，开起车来摇晃不定。

He was obviously upset and was driving erratically .

他对下一步该做什么犹豫不定。

He was unsure of what to do next .

他以有力的论据说服了那些摇摆不定的人。

The strength of his argument convinced the waverers .

她拿不定主意穿什么好。

She was dithering over what to wear .

你来选吧，我拿不定主意。

You choose ─ I can 't decide .

你来选吧，我拿不定主意。

You choose , I can 't decide .

我拿不定主意穿什么。

I can 't decide what to wear .

他的情绪变化不定，一会儿恐惧一会儿生气。

His emotions veered between fear and anger .

乔治犹豫不定——他是该去呢，还是不该去？

George was in a quandary ─ should he go or shouldn 't he ?

在一切得以解决之前还有很多不定因素。

There are still a lot of ifs and buts before everything 's settled .

拿不定主意就穿黑色衣服。

If in doubt , wear black .

她拿不定主意穿什么。

She can 't make her mind up what to wear .

这些漂泊不定的年轻人没有其他地方可去。

These rootless young people have nowhere else to go .

跟许多家长一样，我对是否该穿校服也拿不定主意。

Like many parents , I am in two minds about school uniforms

今日在蒙特利尔的街头巷尾，人们的意见仍摇摆不定。

Today on the streets of Montreal , opinion seems still to waver

东京股市涨落不定。

The Tokyo stock market seesawed up and down .

这个国家在基督教和异教间摇摆不定。

The country swayed precariously between Christianity and paganism .

他就是拿不定主意。

He simply can 't make his mind up

他的表情在一本正经和茫然惶惑之间变幻不定。

His expressions varied from poker-faced to blank

指不定谁在那酒里下了药。

Anyone could have drugged that wine .