Designative
a. 指定的, 指明的
✅ 同义词
🗣️ 情景例句
He's just fooling around.
他用情不专。
What were you doing when I called?
我打电话给你时你在干吗？
and by the time he is grown and able to take part in its activities,
等他长大了，能做各种事了