There was a slight frown between his eyes, and a sullenness in his expression that was unusual with him.

他的眉心微微皱起，神情中透出一丝不寻常的阴沉。

The sailor's sullenness was dispelled by the flattery and with a complacent smile he flexed his arm so that the biceps stood out.

水手的闷闷不乐被奉承驱散了，他露出得意的微笑，弯曲了手臂，使二头肌突出。

Determined that there should be nothing in his conduct towards his mother resembling sullenness, he had occasionally spoken to her on passing matters, and would take no notice of the brevity of her replies.

他打定主意，对母亲决不该有愠怒的表现，间或跟她说说眼前正在发生的事情，对她言辞不多的回答也毫不在意。