1. Over ninety countries ratified an agreement to ban the use of these chemicals.
    九十多个国家批准了一项禁止使用这些化学品的协议。

1. 批准：在此期间内,涉及有关该国际公约的事务,容有必需予以改变或增加,或以技术的问题难以获得若干国家对该国际公约之批准(ratify),而采取以议定书方式来补充或修正国际公约.

2. ratify的反义词

2. 认可：海牙战争罪法庭 ICCt(不是海牙国际法庭ICJ)不可能起诉布什,因为美国与伊拉克均没有认可(ratify)该法庭的成立条约. 非ICCt成立条约的认可国的公民是不在该法庭司法管辖权之内的.

3. 互换批准书(确认程序通过：胡乱投票 donkey vote | 互换批准书(确认程序通过 ratify | 互相授权 cross-authorization

4. 批准;认可：rap 指控,批评 | ratify 批准;认可 | reap 收割;获得回报

1. 正式签署;批准;认可
    When national leaders or organizations ratify a treaty or written agreement, they make it official by giving their formal approval to it, usually by signing it or voting for it.

    e.g. The parliaments of Australia and Indonesia have yet to ratify the treaty.
           澳大利亚和印度尼西亚的国会尚未批准该条约。

1. approve and express assent, responsibility, or obligation

    e.g. All parties ratified the peace treaty
           Have you signed your contract yet?

    Synonym: sign