However,her children have learned an important lesson witnessing their mother earn her deqree.这句话中,“witnessing their mother earn her deqree”整体作lesson的同位语吗?earn作为动词,这里用动词原形如何理解?
请教各位老师:【句子】Relaxation and recreation, which are considered to
be an indispensable element of life. 这里的主语不是relaxation和recreation两个吗,为什么要在element之前用an修饰?
Also explored were the photophysical properties and conduction characteristics
governing the devices fabricated using these nanomaterials.我把explored 这个当成形容词在句子中作主语,不知道理解的对不对?
...了冠词吗▲P5▲with businesses taking
advantage of the celebrations 的语法分析▲P6▲Mid-Autumn Festival 与 Mid-Autumn Daythe Lunar New Year(春节)一定要带定冠词吗the Spring Festival(春节)一定要带定冠词吗a really fun day 中的 fun是什么词性It is fun ...
It may bring a reprieve for the whale populations currently protected in international waters but at a very high price.这里与but并列的部分是bring a reprieve吗,相当于it may be at a very high price?