He celebrates his ninetieth birthday on Friday.
他周五庆祝他的90岁生日。
This year, Junior Achievement marks its ninetieth anniversary of educating young people about business and economics.
今年，青年成就组织庆祝其为年轻人提供商业和经济方面的教育90周年。
For any country ratifying or acceding to it later this Convention shall enter into force on the ninetieth day after the said country has deposited its instrument of ratification or accession.
若有的国家嗣后批准或加入，本公约将自该国交存其批准或加入的文件后的第九十天起，开始对该国生效。
For any country ratifying or acceding to it later this Convention shall enter into force on the ninetieth day after the said country has deposited its instrument of ratification or accession.
若有的国家嗣后批准或加入，本公约将自该国交存其批准或加入的文件后的第九十天起，开始对该国生效。
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