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Men make a thousand sperm every second and to have an effective contraceptive, 每秒中,男性可生产出一千个精子,所以有效的避孕药 you need to get that level of sperm production down to one percent of its normal value. 必须把这个精子生
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奥巴马2013莫尔豪斯学院20
And that motivates me. 正是这些激励了我. So it's up to you to widen your circle of concern. 你们需要拓宽自己关怀的范围. To care about justice for everybody, white, black and brown. 关心所有人的正义 无论白人 黑人 还是棕色人种. Everybody.