Help yourself, please.

请随便。

We started by making safety equipment for many sports.

我们是以做运动产品的安全器材起家的。

What guarantee do I have that it won't break down easily?

有什么保障它不会轻易出故障？

That's the recreation center and restaurant.

那是娱乐中心和餐馆。

The interview and conversation between us in Beijing are quite useful and inspiring.

我们在北京的会面和谈话是十分有益和令人鼓舞的。

Claim concerning transportation should be referred to the shiping company.

涉及运输问题，应当向船运公司提出索赔。