communicate sb 是不是等于talk with sb.

不是,有一点区别的：talk to
1.同(某人)谈话
I really enjoy talking to you.
同你谈话我十分高兴.
2.责骂
He is talking to her sharply.
他正在严厉地责备她.
talk with sb. 与…交谈,试图说服communicate to
1.传达给…; 向…表达
He asked me to communicate his wishes to you.
他请我向你转达他对你的祝愿.
He communicates his despair to me.
他向我表达他的绝望心情.
2.传染, 传送
He communicated the disease to the rest of his family.
他把病传染给了家里其他人.communicate with
1.与…联系, 与…交往
I communicate with him regularly by letter.
我与他定期通信.
2.与…相通
Her bedroom communicates with the bathroom.
她的卧室和浴室相通.