I want you to remember instead the joy and the happiness of those times when you first said hello to a friend. Take that special hello and lock it away within you—in that place in your heart where summer is an always time.请问: always 还是形容词吗?
Stronger than FM radio signals, these RF waves are still a billionth the intensity of known carcinogenic radiation like X-rays.本句中 a billionth the intensity 这几个单词连用，比较奇怪，billionth为什么后面直接可以跟名词呢？请教老师了，谢...
Although scientists have known for a long time that about 2% of people suffer from face - blindness, which means that they have huge problems recognising faces, they are only new realising that some people are the exact ones.这三个that的作用是什么呢？
...ities, several females collaborate to raise the young of only one of them) are more ornamented than those in which all adult females have a chance of breeding. In this case it is females who are competing for the right to reproduce, thus putting themselves in a more male-lik...
...态动词和静态动词有关，还是和语义有关？3) The villagers are
regularly visited by doctors。这句话是原句，是否我们可以变换为：The villagers
(who are) regularly visited by doctors are satisfied with their service.这样就是动态动词表示被动一般意义么？...
Textbook publishers connect professors, instructors and students in
ways that alternatives, such as open e-textbooks and open educational
resources, simply do not.这是个什么句型，前半句理解，从alternatives往后就看不懂了。
...nd gleams and sparkles, rustle and
swirl, chatter and bubble.
And if ever you catch me going a-pleasuring with this provoking animal
again!
这两句话均摘自《柳林风声》，两个句子中的a-shake and a-shiver，a-pleasuring前面都有a-，不知是什么意思。查了词典和语法...
Although warnings are often appropriate and necessary—the dangers of drug interaction, for example—and many are required by state and government, it isn't clear that they actually protect the manufacturers and sellers from liability if a customer is injured.这个句子结构和意思理不...