Phthalamic acid

acid ['æsɪd]

adj. 酸味的;尖刻的;酸的;酸性的; n. <化>酸;酸味物质;

acid尖，酸，锐利 →酸；酸的，酸性的

I visited Japan on an observation tour of its industries.

我到日本观摩它的工业。

He hears a nice tune. Now, he is listening to it.

他听到了美妙的旋律。现在，他在倾耳聆听。

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。