aged和aging区别

　　Aging happens to all of us, and is generally thought of as a natural part of life.

　　衰老发生在我们所有人身上，通常被认为是生命的自然组成部分。

　　Children aged under four go half-price.

　　四岁以下儿童半票。

　　The shock has aged her.

　　这次打击让她显得苍老了。