Definiteness
确定性
✅ 同义词
🗣️ 情景例句
Good-bye.
再见。
Who holds the purse rules the house.
钱可神通。
In fact a basic amount of movement occurs during sleep which is specifically concerned with preventing muscle inactivity.
事实上，睡眠状态下仍有着基本的活动量，以防止肌肉活动停止。