Her elder sister's been acting rather funnily just recently.是什么意思？

Her elder sister's been acting rather funnily just recently.

她姐姐近来表现得相当反常.

her

pron. (she的宾格)她，(she的所有格)她的，她，指某个国家，（一艘）船；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

elder

n. 年长的，资格老的，头人，长辈，长老；adj. 年纪较大的，资格老的，老练的；

例句
Clare's close resemblance to his elder sister invoked a deep dislike in him.
克莱尔酷似他姐姐，这引起他极大的反感。

been

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去分词 ），在，存在，不受干扰，去过了，be的过去分词；

例句
Have you been able to have any kind of contact?...
你联系上了吗？

acting

adj. 代理的，起作用的，活动着的，产生影响的；n. 表演，演技，装腔作势，做作；vt. 举止合宜：使举止与…相称，扮演：担任…的角色，表演，假装；vi. 举动，举止，扮演，担当，矫揉造作，假装，行动，运作；

例句
...a second career which absorbed her more completely than her acting ever had.
比演艺生涯更让她投入的又一职业

rather

adv. 稍微，有点，相当，颇，宁愿，相反地；int. 当然啦，怎么不；

例句
These wines may taste rather hard and somewhat acid.
这些酒可能喝着比较冲并且有股酸味。

funnily

adv. 有趣地，滑稽地；

例句
I called him three times, but funnily enough, he didn't answer.
我叫了他三声, 奇怪的是, 他不答应.

just

adv. 刚才，仅仅，只是，正好，刚要；adj. 公正的，合理的，恰当的，合法的，正确的；

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。

recently

adv. 最近，近来，不久以前，近日，新近；

例句
They recently failed to negotiate a mutually acceptable new contract.
他们最近未能谈成一个双方都满意的新合同。