Osteopenia
骨质减少
🗣️ 情景例句
and this wonderful weather.
和这种美好的天气吧。
Reputation is often got without merit and lost without fault.
无功得名是常事，无过失名也是常事。
And anyone who gave more than a passing thought to the bottom confines of the oceans probably assumed that the sea bed was flat.
凡是稍稍想过大海海底的人大概都会认为海底是平坦的。