These documents are made between two or more business parties when they enter an agreement on a mutual consent basis. 、
The Philippines has been at the forefront of promoting gender equality and eliminating all of forms of discrimination against women in the international arena, so even before the convention on the elimination of discrimination against women or CEDAW entered into force we were one of the earlier signatories and we also rectified it very early on.
一般地,
enter 指进入较具体的事物
enter the room进房间, ehter high school上高中(就读).
enter into 指较抽象的事物
enter into the spirit of 学习...的精神; enter into a secret societ 踏入江湖
有时两者较难分开,但总体,身体进不去的,用enter into大体不会错
enter into negotiations参与/开始谈判;enter into an agreement 达成协议
还有其它因素:
enter university 上大学就读
enter the university (走)进入大学校园里
enter into [vt.] (1) 开始(工作、交涉等),处理(问题等),缔结(协定等) (【with 名】与...) / He entered into an argument with the teacher. 他和那位老师争论。/ enter into a contract with a firm 和公司订立合同 (2) 察颜观色,体会,共鸣,参与(3) 包含于 ...... 之中,成为 ...... 一部分/ His illness didn't enter into my plans.在我的计划中,并未考虑到他会生病。(摘自外研社、建宏《英汉多功能词典》1997年1月第1版)