No human race anywhere on earth is so backward that it has no language of its own at all.

地球上任何地方都没有这样的人类种族，他们如此落后以至于完全没有自己的语言。

youdao

Our country is so backward.

我们的国家这么落后。

youdao

When I was young I used to really agonize over why China had to be so poor, so weak, and so backward compared to the West?

小的时候曾经有一个问题令我极度痛苦：为甚么比起西方中国这么穷、这么弱、这么落后呢？

youdao

I bent my head backward to drink in the stars, and clearly I heard a song so sweet and pure I had to hold myself to keep from breaking.

VOA: special.2009.02.14

So, you reinforce the pig for walking forward and you punish the pig for walking backward.

那你就对这头猪向前走的行为给予强化,如果它向后退，你就惩罚它。

耶鲁公开课 - 心理学导论课程节选

So use work out of right-hand side to run left-hand backward.

利用右边输出的功,来驱动左边的热机反方向运行。

麻省理工公开课 - 热力学与动力学课程节选

How can the EU claim to be a political model for the 21st-century superstate when it remains so backward-looking on this key point?

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"Not so backward, " she explains.

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But many of these so-called backward sectors are actually servicing the advanced economic sectors and their high-income employees.

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