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(单词翻译:双击或拖选)
Travel company tells Danes to have sex on holiday
Vocabulary
birth rate
number of births in a particular period of time in a specific place
concerned
worried
sexologist
expert in human sexual behaviour
menstrual cycle
the repeated process of changes in which a woman's body prepares to become pregnant
fertile
able to have children
child-friendly holiday
holiday which is suitable for children
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