Intermediate-frequency amplifier

intermediate [,ɪntɚ'midɪət]

adj. 中间的，中级的; n. 中间物，中间分子，中间人; vi. 调解：充当调解人，调解;干涉;

inter 在…之间，相互 + medi中间 + ate 做、造成 → a.中间的；中级的

frequency ['frikwənsi]

n. 频繁性;[数][物]频率，次数;频率分布;

fr + equ =equal,even,表示“相等，平均” + enc + y [形容词后缀] → n.屡次；次数；频率

amplifier ['æmplɪfaɪɚ]

n. 扩音器;放大器;扩大的人;详述者;

ampli=amplify扩音+fier人或物 →扩音器

If only Robbie and Alexandra were here.

要是Robbie和Alexandra在这儿多好。

I agree. I wish it were quicker.

是这样，我希望它能快一点。

The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri

他们保存历史的唯一办法是将历史当作传说讲述，由讲述人一代接一代地将史实描述为传奇故事口传下来。