他笑得合不拢嘴。
当小男孩的母亲给他苹果时，他笑得合不拢嘴。
The boy grinned from ear to ear when his mother gave him the apple.
当他父亲送给他一辆新自行车时他笑得合不拢嘴。
He grinned from ear to ear when his father gave him a new bike.
当他父亲给他一部电脑时，他开心地笑得合不拢嘴。
The boy grinned from ear to ear when his father gave him a computer.
当他父亲给他一部电脑时，他开心地笑得合不拢嘴。
The boy grinned from ear to ear when his father gave him a computer.
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