Environmental groups in Nevada and the Midwest have issued similar ultimatums.内华达和中西部的环保团体也发布了类似的最后通牒.A proactive teacher doesn't deliver ultimatums.[先发制人式]师并不下最后通牒....
How monogamy fares during this epoch, therefore, only occupies him very briefly.所以, 他只是非常简单地论述了一下一夫一妻制在这一时期的命运.People still opt for monogamy and marriage.人们仍然选择一夫一妻制。McLennan knew only three forms of marriage: polygyny, ...