名词所有格: boy's
There was a deep frown on the boy's face.
那个男孩的脸上有深皱眉的表情。
The boy was cheeky and casual.
这个男孩嘻皮笑脸、随随便便。
He seemed so young， a mere boy.
他看来那么年轻，只是个孩子。
I'm going to be a good boy now.
我现在要做一个听话的男孩。
The boy has great potential.
这个男孩有很大的潜力。
The boy gave him a guarded look.
这个男孩谨慎地看了他一眼。
