汉译英：今天你会即遇到好运,又碰到坏运。下个月中旬我们会参加许多庆祝活动

You will have good luck as well as misfortune today.

have good luck 是习惯用语，不能说meet good luck.

We will attend many celebrations in the middle of next month.

月中: in the middle of xx. 例： in the middle of June。

Today you're going to meet luck and misfortune.（眼下即将发生的事情用be going to）
We will participate(或者get get比较口语化)a lot of parties by the middle of next month.
（距发生时间较长用will）

Today, you will be encountered good luck, and also meet with bad luck. In mid next month we will participate in the celebration activities many

Today you will have both good luck and bad luck.
We will take part in a great many celebrations in the middle of next month.