Lacked

Littering is a serious offense in some countries.

乱扔垃圾在某些国家是严重的违法。

If your prices are more favorable than those of your competitors we shall send you our order.

如果你方价格比其他竞争对手的优惠，我们将向你们订货。

I think it is important to understand the relations between parents and their children. They spend time, energy and money in bringing up children and providing them with what they need. Then, as with young birds, the time comes for the young to leave. As

我认为父母和孩子们之间的相互理解是很重要的。父母花费时间、精力和金钱带大孩子们，给他们提供所需的一切。然后，年轻人就像小鸟飞离家一样离开了家。正如我们所说，所轻人长大飞走的一天是必然会到来的。尽管这时父母会感到难过，但是他们感情用事是不对的。