Nonresponse
無反應, 無感應
??? 情景例句
Are the beaches safe for swimming?
在這兒的海灘游泳安全嗎？
Don't make rude remarks about their appearances.
不要口無遮攔，批評他們的外表。
the other the lack of freedom of the individual research worker.
二是研究人員缺乏個人自由。