?意思：指四代同堂，即祖孫三代或者父母子女三代同住一個(gè)屋檐下的家庭模式。

用法：這一短語(yǔ)通常用來(lái)形容家庭中多代人共同生活的情況，也可以用來(lái)指多個(gè)世代共同生活在一個(gè)社會(huì)或者中。

例句1：In traditional Chinese culture, it is common for four generations to live together under one roof, which is known as "sishi tongtang". (在傳統(tǒng)文化中，四世同堂是一種常見(jiàn)的家庭模式。)

例句2：With the aging population, the concept of "sishi tongtang" is becoming more and more popular in many countries. (隨著人口老齡化，"四世同堂"的概念在許多變得越來(lái)越流行。)

例句3：The traditional family structure of "sishi tongtang" has its advantages and disadvantages. (傳統(tǒng)的"四世同堂"家庭結(jié)構(gòu)有其優(yōu)點(diǎn)和缺點(diǎn)。)

例句4：In some cultures, the concept of "sishi tongtang" is seen as a symbol of strong family ties and respect for elders. (在一些文化中，"四世同堂"被視為強(qiáng)烈的家庭紐帶和對(duì)長(zhǎng)輩的尊重的象征。)

例句5：Living in a "sishi tongtang" household can be challenging at times, but it also brings a sense of warmth and support from multiple generations. (生活在一個(gè)"四世同堂"的家庭中有時(shí)可能會(huì)有挑戰(zhàn)，但也會(huì)帶來(lái)多代人的溫暖和支持。)

同義詞及用法：四世同堂的另一個(gè)常用詞語(yǔ)是"三代同堂"，它們可以互換使用。另外，也可以用"多代共居"來(lái)表達(dá)相同的意思。