translation.en: Of course, now the answer often comes not at birth but at the ultrasound, unless the prospective parents choose to be surprised, like we all were.
translation.zh: 当然，现在谜底经常 是在做超声波而不是 出生的时候就揭晓了， 除非准父母们选择 和我们那会儿一样等待一个惊喜。