There was some difficulty in explaining this to the Swede 中 in explaining this to the Swede 做状语.表示【在哪方面有困难做某事】如果改为there was some difficulty explaining this to the Swede 中 explaining this to the Swede 做定语还是状语呢如果改为there was some difficulty explaining this to the Swede 中 explaining this to the Swede 还是做状语。因为there is/ was some difficulty (in) doing sth是固定短语。意思是：“在某方面做某事有困难”