The psychologists reasoned that if the children knew what they usually looked like, they would be surprised by the unusual red mark and would start touching it.
心理学家推断,如果孩子们知道自己平时的样子,他们就会对这个不寻常的红色标记感到惊讶,并开始触摸它。
2
I'd like to start by mentioning the research of American sociologist Mark Granovetter in 1973.
首先我想介绍美国社会学家马克·格兰诺维特在1973年的研究。
3
What time does Markstart to work on Saturday afternoon?