动名词做主语
Ving + 谓语（第三人称单数） + 宾语
(Ving + 宾语) + 谓语（第三人称单数） + 宾语
例句
我们在图书馆里学习使我们很开心
Learning in our library makes us happy.
扩展：Learning quietly in our library which is in this campus makes us happy.
Thinking that producing computers from China when the economy is good is effective makes me happy.
整体是两个动名词做主语的句子嵌套
(Thinking that + 句子) makes me happy.
Producing computers (状语) is effective.
from China 和 when the economy is good 都是 producing 的状语