Subharmonic
[电] 次谐波
🗣️ 情景例句
It's seventy-five cents for adults and thirty cents for children under twelve.
大人75美分，12岁以下的小孩30分。
He applied for a scholarship at Harvard University.
他申请了哈佛的奖学金。
Could you tell me your secret for a long, happy life?
你能告诉我长时间地过着快乐的生活的秘诀吗？