It's illegal to get into a formal agreement with investors that they'll buy in the aftermarket.

与投资人达成正式协议允许其在后市买入是非法的。

《柯林斯英汉双解大词典》

Engage in dialogue on illegal logging and explore ways to cooperate including through a bilateral agreement.

就木材非法采伐开展对话，探索包括签署双边协议在内的合作途径。

youdao

If any of the provisions contained in this Agreement are held to be invalid, illegal, or unenforceable, the enforceability of the other remaining provisions shall not be impaired.

如果本协议包括的条款是无效的、非法的或不可执行的，其他持有条款的实施性不被损坏。

youdao

It has a long name: the Agreement on Port State Measures to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing.

VOA: special.2009.12.08

It's illegal to sign an agreement, to sign a contract saying you're going to restrict quantities.

签订这样限制产量的协议,属于违法行为

耶鲁公开课 - 博弈论课程节选

This year, the Supreme Court threw out a multimillion-dollar mining lease awarded to a Canadian-Chilean joint venture, calling the agreement illegal.

WSJ: Pakistani Judge Gains Clout

In her debut speech to the European Parliament since her country took on the rotating presidency of the Council of Ministers, Hungarian State Secretary for European Affairs Eniko Gyori said the agreement could help tackle illegal cross-border trade and improve co-operation on environmental issues.

BBC: MEPs back EU-Serbia agreement

Mr Michel implied, with his "absolutely illegal" comment, that no confidentiality agreement had been signed.

BBC: The Michel emails - questions for the FSA?