The fashion at the time was for teaching mainly the written language.

那时教学时兴的主要是书面语。

《牛津词典》

No federal law shields "transaction and experience" information—mainly the details of your bank and credit-card accounts.

没有联邦法律保护“交易和体验”信息——主要是你的银行和信用卡账户的详细信息。

youdao

This beetle eats mainly the germ of the grain.

这种甲虫要吃谷物的胚芽。

youdao

It said the drop was mainly the result of fewer cases of lung, prostate and colorectal cancer in men.

VOA: special.2009.01.13

What oriental? That means mainly the Tigris and Euphrates, Mesopotamia, Syria,all those older civilizations and much more advanced civilizations than the Greek.

哪个东方,这主要指底格里斯河和,幼发拉底河文明,美索不达米亚文明,以及叙利亚文明等这些旧文明,它们都比希腊先进的多

耶鲁公开课 - 古希腊历史简介课程节选

How's it different? Just mainly the sounds and how fast somebody speaks

他们如何不同的？主要是语音和语速，

方言口音很重 - SpeakingMax英语口语达人

So now it ensnares an increasing number of people, mainly the upper middle class.

FORBES: Magazine Article

Paul Rudd is mainly the straight man in this wan, sentimental, occasionally very funny comedy.

NEWYORKER: Role Models

Her success there was mainly the result of her clear enunciation of Tea Party talking points.

NEWYORKER: Leap of Faith