Claims, if any, must be made within 30 days after the arrival of the goods.
索赔必须在货物抵达目的地后30天内提出。
Don't underestimate me.
别小看我。
I'm not sure. I ought to do some studying, as I've got masses of work to do, but I think I'll be too tired. Maybe I'll just watch the news on television and go to bed early.