英語翻譯：

calm; candid; smooth

例句：

1. 她談起私生活時非常坦率，大家都很吃驚。
   They were surprised by her openness when talking about her private life.
2. 整個地形十分平坦。
   The whole landscape looked as flat as a pancake.
3. 該處地勢平坦又沒有樹木，部隊無處隱蔽。
   The land was flat and treeless and gave no cover to the troops.
4. 找一處平坦的地面放野餐的餐桌。
   Find level ground for the picnic table.
5. 足球場地應該平坦。
   A football field should be level.