蓝瑟季候风
对应的英语：These two companies agree to co-operate and jointly plan the program/project.或者：Both companies made an agreement to cooperate and jointly to develop the program/project.
小墩子921
记住both的用法1．和谓语动词连用时，both应放在 be动词、助动词和情态动词之后，行为动词之前。例如： My parents are both doctors．我父母都是医生。 The two sisters can both drive cars．这两位姐妹都能开汽车。 They will both stay here for another day or two．他们俩在这儿将再逗留一两天。 注意：在简略回答以及感叹句中， both不能位于句尾，要放在be动词、助动词或情态动词之前。例如： “Are your parents workers？”“Yes， they both are．”“你父母是工人吗？”“是的，他们俩都是工人。” How clever they both are！他们俩多聪明啊！ 2．both可直接放在名词前作定语。但如果名词前有其它限定词，如the， these，my或two等，则应放在这些词前面，也可以用both of加上这些词。如：可以说both（of）the books，both（of）his hands等。不能说the both books，his both hands等。例如： Both（of）my parents work in a hos- pital．（＝My parents both work in a hos- pital．）我父母都在医院工作。 3．both和代词连用时，应说they both（作主语），both of them（作主语或宾语），them both（作宾语）等形式，不能说 both they或both them等。例如： We must thank both of you．（＝We must thank you both．）我们应该感谢你们俩。 Both of us are from Canada．（＝We are both from Cana-da．）我们俩都是加拿大人。祝你进步！
jiajia1994
Both of us thought so. 我们俩都这样想的。My brother and my sister both ran to help me. 我弟弟和我妹妹都跑来帮助我。Both of them like popular songs. 他们两人都喜欢流行歌曲。Both her children go to the same school. 她的两个孩子在同一个学校读书。conj.both... and...不但…而且…； 既…又…Both New York and London have traffic problems. 纽约和伦敦都存在交通问题。The secretary both speaks and writes Spanish. 这位秘书不但能讲而且能写西班牙语。Both teaching and research work are making great strides. 教学与科研都在大踏步前进。The delegates visited both New York and Boston. 代表们既访问了纽约,又访问了波士顿。
手机专用
相互作用的英文：interaction。
读音：英[ˌɪntərˈækʃn]、美[ˌɪntərˈækʃn]。
释义：
n. 相互作用，相互影响；交流；[数] 交互作用；互动。
变形：复数interactions。
interaction造句如下：
1、The full interaction between husband and wife can greatly enhance the relationship.
夫妻之间的充分交流会极大地促进感情。
2、The interaction of these two substances changed the experimental results.
这两种物质的相互影响改变了实验结果。
3、Electromagnetic interaction is one of the four basic interactions in nature.
电磁相互作用是自然界的四种基本相互作用之一。
4、When we can call and text, almost nobody needs face-to-face interaction.
当我们可以打电话和发短信的时候 几乎没有人需要面对面的交流。
5、There's a lot of interaction between the students and the teacher.
师生间有很多互动。
