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?
Interaction with the multitude of microscopic organisms a baby picks up when it is born helps that system to learn friend from foe.老师您好,请问这里的a baby应该是省略了关系副词where吧,它为何又可以省略。它并非表地点,原因,时间啥的。
Asked if she opposed immunizations, she wanted to know if vaccines come from animal research. When assured that they do, she replied, "Then I would have to say yes."请问老师为什么这个yes翻译成“是的,我没接种”