汉译英：上周末我们一起去野外郊游玩得很开心.

We had many funs on the wild outing last week.

We went on an outing last weekend and had a great time.

Last weekend we went to had a fun field trip。

we had great fun in weekend's field trip.

汉译英： 上周末我们一起去野外郊游玩得很开心.

Last weekend we had fun going on a trip.

　　Last weekend, we went outing in the open air out of town and had a great time.

We had fun going to the picnic last week