jiē shí
这双鞋很结实丨绳子绑得很结实。
Zhè shuāng xié hěn jiē shi | Shéng zi bǎng de hěn jiē shi.
These shoes are very sturdy | The rope is tied very firmly.
他的身体结实。
Tā de shēn tǐ jiē shi.
He has a strong/sturdy body.