For about six or seven weeks after conception, there is no differentiation between male and female.

在受精后大约六七个星期时，男性和女性胚胎之间没有什么差别。

《柯林斯英汉双解大词典》

During the time she is paired to a male, the female allows no other males to copulate with her.

雌性与一雄性配对时，雌性不允许其他雄性与其交配。

《柯林斯英汉双解大词典》

Kelly couldn't focus his eyes well enough to tell if the figure was male or female.

凯利无法看清那个人影是男的还是女的。

《柯林斯英汉双解大词典》

Naming expert Cleveland Evans explains that many of these names were traditionally female or male at one time or another.

VOA: special.2009.07.06

Milton's been noting that some of the pagan deities that the fallen angels eventually became were male and some were female.

堕落天使化身成的异端神灵,有男有女，弥尔顿本无须说明。

耶鲁公开课 - 弥尔顿课程节选

Moreover, this earthling that seems to include both male and female, is then said to be in the image of God.

而且，这地球生物中似乎既有男也有女，他们依照上帝的形象。

耶鲁公开课 - 旧约导论课程节选

The large differences observed in unconjugated BPA levels between injection and oral exposures were qualitatively and quantitatively similar to what we previously reported in male and non-pregnant female monkeys, adult male and female rats, and adult male and female mice.

FORBES: Leading Environmental Group Scientist Praises FDA's Ground-Breaking Research On BPA: A Tipping Point In The Controversy?

Within the organization, we have observed a similar imbalance with male-female participants: Many of our events tend to draw far more male attendees than female (roughly 80% male and 20% female).

FORBES: Startup Weekend's Focus On Women Founders

Imagine there are four defendants a lean male, lean female, obese male and obese female.

FORBES: Women Judged On Weight In Court, Study Finds