If you saw the sun was shining outside, you might say 'It's a beautiful day, I think I'll, or I will, go for a swim later, ' or 'maybe I'll phone my friends and organise a picnic'.
如果你看
外面太阳在天空照耀,你可能会说,‘天气不错哟,我想等会儿去(i'll=i will)游泳’或者‘我会给朋友打电话,组织大家去野餐’。