thiswillrelievepressureonthetrainstosomeextent.pressure前为什么不加the?onthetrains是pressure的后置定语,为何pressure前不加the?是因为文章不着重强调pressure（压力）么?加the也可以吧?好像Mr.xwhowasresp

Question

this will relieve pressure on the trains to some extent .pressure前为什么不加the?
on the trains是pressure的后置定语,为何pressure前不加the?是因为文章不着重强调pressure（压力）么?加the也可以吧?
好像Mr.x who was responsible for the making of the clock.the 是肯定要加的.无解,求教.

Answer 1

因为这里的pressure其实是复数的,只不过pressure 的复数pressure也是pressure,所以看不出来而已.所以不用the.
如果加the这里也可以,只不过重点稍微差一点.
好像Mr.x who was responsible for the making of the clock., 是特指一个钟表,他负责做那个钟表
如果说Mr.x who was responsible for the making of clocks.也可以,泛指钟表, 他负责做钟表
Mr.x who was responsible for the making of the clocks. 也可以,他负责做那些钟表,特指一些钟表.