Lesson Comments

http://www.sesp.northwestern.edu/docs/publications/6074956944509ac426aaa6.pdf Read more

http://humrep.oxfordjournals.org/cgi/content/full/21/7/1645 ...read from "The discovery of the mammalian oocyte and early embryological studies" Read more

I guess not, but I'd say 交朋友 is more common (in the sense of 'to make friends'.) I tend to think of 做朋友 as more like 'to be a friend'. e.g. 我们交朋友吧。... Read more

mid 1300's: http://www.nlm.nih.gov/exhibition/historicalanatomies/huashou_home.html Read more

坎坷和辛劳都是形容词， 对吗？ 可以把这两个字作为名词吗？   我另一个问题是。‘我 发现 自己 与 这个 时代 有点儿 格格不入 了 。’ 为什么没有‘了’放在动词的后面，我... Read more

http://www.ncbi.nlm.nih.gov/pubmed/18548873 Read more

I don't know if anyone can answer this question.  The Chinese translation of ovary is:  卵巢.  No one in premodern China would know this... Read more

Is there any difference between 做朋友 (zòu péngyou) and 交朋友 (jiāo péngyou)?  Read more

Why wouldn't you add 了 with every 刚才 sentence?  Just cause I thought 刚才 would always imply a completed action Read more

For the hard Dutch cheeses temp is not such a big problem when sealed or bought in a wheel. I think that humidity is cheese's biggest enemy, not heat... Read more