It might mean that here. 英语chin 和jaw 的区别chin和jaw的区别是：1、作名词时的意思是：chin：颏；下巴。 例句：he had a receding chin which made him appear vacuous.翻译：他的下巴往后缩，使他看起来呆. Ben is possibly acknowledging the enormity of the task.
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Chin和jaw的区别是：1、作名词时的意思是：chin：颏；下巴。 例句：he had a receding chin which made him appear vacuous.翻译：他的下巴往后缩，使他看起来呆愣愣的。 Setting one's jaw is an expression usually adopted to signify determination in a person.
