”我会参加18号的会议．17号的会面还在商议中．”用英语怎么说？

I will attend the conference/meeting on 18th, but the one on 17th is still under discussion.

I shall attend the meeting of this 18th and the one of this 17th is to be decided

后一个meeting 用one 取代,一般不重复用. 商议中,就是没自己决定,在英文中不是用商议,因此decide

I'll attend the meeting on 18th.
The meeting on 17th is still being discussed now.

I will take part in the meeting of 18th ,and the rendezvous of 17th is still under discussion

i will attend the conference on the 18th and the meeting on the 17th is still in negotiation

I will attend the meeting on 18, while the meeting on 17 is under negociation