The little girl sat on the swing, swinging herself Backwards and forwards.

He took up the knife and drew it backwards and forwards over his throat.

他便拿起刀,在他的喉咙前面划来划去.

She was always coming backwards and forwards.

她经常来来往往.

It moves, it vibrates backwards and forwards.

它在运动, 前后震动.

He lit the gas and began to pace backwards and forwards.

他点燃了煤气炉,然后开始来回地在地上踱着步.

Travelling backwards and forwards everyday cost him too much money.

每天来回花了他太多的钱.

The shuttle moves backwards and forwards through the warp.

梭子在经线中来回移动.

Draw the floss backwards and forwards between the teeth.

将牙线在齿间来回拉动。

The backwash waste is drained to the regular waste outlet.

以橹反推的水废物被排出沟外到规则的废物出口.

This rock was shaved by the backwash of the crashing waves.

这块巨大的岩石是由巨大的回浪冲击而成的.

It was found that higher solid loading of backwash water did not lead to lower permeability.

实验又发现废水含有较高的固体浓度并不代表它的滤速就会比较低.

Historically, settled coagulation wastes and backwash waters had been disposed of without treatment.

历史上, 被安定的凝固废物和回流水被处理了,不用治疗.

The backwash of the passing boat took us by surprise.

那艘经过的船所造成的回浪让我们措手不及.

Famine is not the only backwash of drought in Africa.

在非洲,饥荒并非乾旱带来的唯一后果.

Can automatically remove and small particles, unlike backwash strainers.

不同于反冲洗过滤器,它可以自动清除大小颗粒.

Chapter II analyzes the backwash of test to ELT classroom, Chapter III introduces continuous assessment.

第二章着重分析了考试对英语课堂教学的反作用.

Ecotourism has aroused enormous backwash all over the world since it was put forward formally.

生态旅游一经提出,在全世界引起极大的反响.

The backwash of the passing boat took us a surprise.

那艘经过的船造成的回浪让我们措手不及.

Backwashing is one of the Methods: To maintain a filter bed clean.

反冲洗是保持滤床清洁的方法之一.

In the dry-combed process, backwashing occurs after combing.

在干式精梳过程中, 复洗是在精洗之后.

Quebec remained a backwater until the 1960s.

魁北克直到20世纪60年代还是一片死气沉沉。