The second part: Introduced the western expense theory and correlatively various academic genres;

第二部分：介绍了西方的消费理论及各种学术流派；

youdao

Three decades of effort have been expended on string theory, which includes gravity but at the expense of having the universe inelegantly sprout hidden dimensions.

而那个花了三十多年努力的“弦理论”，虽然把引力拉扯进来了，代价是让宇宙加几个不知哪冒出来的维度。

youdao

This is not just theory; it is a lesson we learned, at great expense, during the Savings and Loan crisis of the 1980s.

这不只是理论；它是我们经历了1980年代的储贷危机以巨大的代价所习得的教益。

youdao

That is in theory a deductible business expense, but often it must be capitalized into the cost of the vines depending on how you legally structure your operation.

FORBES: Self-Employment

The theory was to spare cable operators the time and expense of negotiating licenses with the myriad owners of content that was being broadcast over the air.

FORBES: Court Calls Streaming-Video Service IVI A Deadly Threat To TV

In theory, the president is entitled to use it at taxpayers' expense only when he is on official business.

ECONOMIST: Lexington