Selective photoelectric effect
[电] 选择性光电效应
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
🗣️ 情景例句
It is OK to ask children how old they are.
问小孩多大了是可以的。
I would like to call the employment agency for a job.
我要打电话给职业介绍所代我找一份工作。
There is no social problem it is more incumbent upon us to understand than this of the role of custom.
而没有任何一个社会问题比得上风俗的作用问题更要求我们对它理解。