Pneumatic chemistry

pneumatic [numætɪk]

adj. 充气的;气动的;装满空气的;有气胎的; n. 气胎;有气胎的自行车;（风琴的）管;

pneum呼吸 + atic...的 → 装满空气的, 有气胎的

chemistry ['kɛmɪstri]

n. 化学;物质的化学组成（或性质），化学作用（现象）;（常指有强烈性吸引力的）两人间的关系;〈比喻〉神秘的变化（过程）;

chemist药剂师+ry...业 →化学

I'd like to buy some stamps for this letter.

我想买这封信的邮票。

Choose an author as you choose a friend.

选书如择友。

You may have noticed something while you were doing this task. The point is that there is a difference between an interest and a skill. If you like art and enjoy looking at pictures, that is an interest. But if you can draw a horse that looks like a horse

你在回答这些问题时，你可能会注意到一些事。关键在于明白兴趣和技能是不同的。如果你喜欢艺术乐于观看图画，这只是一种兴趣。可是如果你能够画出一匹马，看起来像马而不像一只大狗，这就是一种技能。最好的工作是既能运用你做某事的技能，又是你兴趣之所在。同样，如果你相?2283