They are free to join.

他们随时可以加入。

youdao

Feel free to join us, if you want to.

如果你想，随便加入到我们里。

youdao

Zunafish is free to join and there is no limit to how many trades you can make.

Zunafish是免费加入的，并且不限制交换次数。

youdao

He urged other nations to join in an effort to free the world of nuclear weapons.

VOA: special.2009.04.11

" ...when all of God's children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing in the words of the old Negro spiritual: Free at last! Free at last!

VOA: special.2010.04.16

"We want to reintegrate those people who are today perhaps part of the insurgency but prepared to abandon violence and prepared to join the political process and we want to ensure that the Afghan government is free of corruption and therefore able to be a strong authority against any Taliban insurgency in the country."

VOA: standard.2009.11.10

Free to join, the group is more of a family than a club, he says.

CNN: Beetle mania hits streets of Bangalore

So please sign-up to follow my posts, and feel free to join the conversation by leaving your comments.

FORBES: Breaking Away From Wall Street: Why I Became An Independent Financial Advisor

With Europe in tow, Fatah and Hamas feel free to join their forces and advance both militarily and politically.

CENTERFORSECURITYPOLICY: Understanding the third terror war