. They also have to know how to make money. 他们还必须知道如何赚钱。
(1) know how to do 其中的不定式带有疑问词。
know what to do 知道做什么。
这一句式可以改为复合句, 上句也可为：:His father makes /earns a lot of money as a pilot.
他父亲当飞机驾驶员挣钱很多。
2. Soft colors like pink and light blue make people relaxed, so they spend
more time eating their meals. 柔和的颜色, 如粉红色和浅蓝色让人们得到放松, 因此他们用更多的时间来进餐。