通过协商英语

有歧义啊，你的意思是：下个月1日离职，3日进新公司吗？如果是，那翻译如下：After negotiation, I will be leaving my last position on the first day of next month. May I start my new job on the third day?

after consultation with the owner

Both sides reach the agreement by bilatral negotiation.

经过与业主的协商through negotiation with the proprietor/owner

They finally concluded an agreement after a negotiation.

They finally came to an agreement after negotiating/negotiation.

在想变瘦的地方包保鲜膜,然后锻炼,比如跑步啊什么的,出汗就好

I will leave the company the first day of next month through negotiation. Could you please tell me if I can join the company 3th next month?

经过双方的协商，最终达成一致。英文翻译：A final decision was made after the consultation of two parts.

协商 [ xié shāng ] . negotiation 词组为：consult with 或 talk things over