The flap of the envelope has come unstuck.

Especially the theory study and the system construction of tourism planning are unsubstantial.

其中,旅游规划的理论探索和体系建设尤其薄弱.

In every joint of this chain joint is the most unsubstantial one.

在这个链条的各个环节中,我国最薄弱的是营销环节.

Within a minute afterwards, he was, to all outward appearance, as unsubstantial as ever.

此后不到一分钟他的神色又跟过去完全一样满不在乎了.

He claimed the charges against him were unsubstantiated.

他声称对他的指控是完全没有事实依据的.

unsubstantiated allegations of child abuse

未经证实的虐待儿童的指控

Indiscriminant use of antibiotics for unsubstantiated infections should not be encouraged.

试验性的抗生素应用在没有客观证据的感染中是不被支持的.

...unsubstantiated rumours about his private life.

有关他私生活的捕风捉影的谣言

Many newspapers quoted figures that are unsubstantiated.

许多报纸采用了不确切的数字.

His attack of the president was unsubstantiated.

说他袭击总统是没有事实根据的.

an unsubstantiated claim/rumour, etc.

未经证实的说法、传言等

I do object to their claim, which I find totally unsubstantiated.

我强烈反对他们的说法，那是毫无根据的。

He made sexual advances to her in an unsubtle way.

他露骨地向她表明了性企图.

The novel has a compelling though unsubtle eloquence.

这部小说文笔虽欠细致,却有一种咄咄逼人的说服力.

The article has a compelling though unsubtle eloquence.

这篇文章辩术虽然不够严谨,但是有一种咄咄逼人的气势.

...a second unsuccessful operation on his knee...

他第二次失败的膝盖手术

She made several unsuccessful attempts to see him.

她几次想见他都未如愿。

Senator Biden , who himself had unsuccessful bid for the Party's nomination for president this year.

拜登今年早些时候也曾经争取过民主党总统候选人提名.

Q: Can I appeal if my application is unsuccessful?

如果我的申请是不成功的,那么我能上诉 吗 ?

They were unsuccessful in meeting their objectives for the year.

他们未能达到年度目标。

There were reports last month of unsuccessful negotiations between guerrillas and commanders.

有报道称上月游击队和指挥官之间的谈判失败。