Meaning of táng:
堂
(main) hall; large room for a specific purpose; relationship between cousins etc on the paternal side of a family; of the same clan
Tāmen zhèngzài fàn táng lǐ chī wǔfàn.
他们正在饭堂里吃午饭。
They are having lunch in the dining hall.
Xuéxiào yǒu yīgè hěn dà de lǐtáng.
学校有一个很大的礼堂。
The school has a very large auditorium.
Wǒ hé táng dì yīqǐ cānjiāle jiātíng jùhuì.
我和堂弟一起参加了家庭聚会。
My cousin and I attended the family gathering together.
Wǒmen yījiā rén zài kètáng lǐ zuò zài yīqǐ tán tiān shuō dì.
我们一家人在客厅里坐在一起谈天说地。
Our family sat together in the living room chatting about everything.
CL:間|间[jian1]; classifier for classes, lectures etc; classifier for sets of furniture
Wǒmen zài cān táng chī wǔfàn.
我们在餐堂吃午饭。
We eat lunch in the dining hall.
Jīntiān wǒ yǒu yī táng shùxué kè.
今天我有一堂数学课。
Today, I have a math class.
Zhè tào xīn jiājù yǒu bā táng.
这套新家具有八堂。
This new set of furniture consists of eight pieces.