He lapsed into long silences or became offensively off-hand...是什么意思？

He lapsed into long silences or became offensively off-hand...

他要么陷入长时间的沉默，要么变得简慢无礼。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

lapsed

adj. 流失的，堕落的；v. 退步( lapse的过去式和过去分词 )，陷入，倒退，丧失；

例句
She muttered something unintelligible and lapsed into silence...
她不知嘟囔了几句什么后就不再开口。

into

prep. （表示方向）进入…中，（表示所属）输入，（表示状态）进入…状态，（表示时间）持续到；

例句
By 1838, the abolitionists had shamed parliament into ending slavery in British colonies...
到1838年，废奴主义者迫使议会出于道德压力而废除了英国殖民地的奴隶制。

long

adj. 长的，长时间的，冗长的，过长的，长音的；adv. 长久地，始终，遥远地；n. 长时间，长时期，[语]长音节，（服装的）长尺寸，长裤；vi. 渴望，极想；

例句
As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy.
只要大多数人还乐意保留君主制，废除它的主张就是痴人说梦。

silences

v. 使安静( silence的第三人称单数 )，使沉默，压制，（用以让人们安静）安静；

例句
There was some fatal flaw in his makeup, and as time went on he lapsed into long silences or became off-hand.
他的性格有致命的缺陷，随着时间的推移，他陷入了久久的沉默，或者变得漠然。

or

conj. 或，或者，还是，不然，否则，左右；prep. <古、诗>在…之前，比…更早；n. [纹章]黑金色、黑色；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

became

v. 变为，成为（ become的过去式 ）；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

offensively

adv. 令人不愉快地，讨厌地，冒犯地；

例句
He lapsed into long silences or became offensively off-hand...
他要么陷入长时间的沉默，要么变得简慢无礼。