The Pluto Underground undertook a mammoth letter-writing campaign.

冥王星地下小组进行了大量书信提议活动。

Thus far, the accusations have taken the form of an online letter-writing campaign, not a legal battle.

时至今日，所谓的控告职责引发了一场不合法理的网上信件攻击。

In the following years, she started a large letter-writing campaign to establish an official holiday for all mothers.

尔后几年，她开启一场大型的写信请愿活动，希望能建立一个给所有母亲的正式节日。

Now that he has his patent, his next step is a letter-writing campaign to get support from major credit card companies.

他已经有了专利，下一步就是要给各大信用卡公司写信以便获得他们的支持。

The group on Tuesday launched a letter-writing campaign aimed at trying to persuade Mattel, the parent company of Fisher-Price, to stop selling the seat.

周二，该集团举行了书信写作活动，意在试图说服美泰，费雪牌母公司，停止销售此座位。

As a result of a letter writing campaign, ABC renewed the series for an eighth season at the last minute, but it was put on hiatus.

写信运动的结果，ABC再次在最后一分钟的第八个赛季的系列，但它是在间隙。