VOA慢速英语:Choosing to Be a Single Mother

biological clock – n. the period of fertility in human beings;  a system in the body that controls natural processes (such as waking, sleeping, and aging)

standard – n. something used as a rule or as a basis of comparison; a level of quality that is considered acceptable or desirable

fantasy – n. an idea about doing something far removed from reality

temperament – n. the usual ability or behavior of a person or animal

stigma – n. a set of harmful and often unfair beliefs that a society or group of people have about something

commentator – n. a person who discusses issues on television, in newspapers, etc.

sperm donor – n. a man who gives his sperm, usually to a fertility center, so that it can be used to help women get pregnant

surreal – adj. very strange or unusual

cavalier – adj. having or showing no concern for something that is important or serious