哥哥和弟弟是双胞胎，长得一模一样。他们的爸爸妈妈经常都不知道谁是哥哥，谁是弟弟。这一天，爸爸妈妈和孩子们去饭馆吃饭，服务员问：“谁是哥哥？谁是弟弟？”他们想了一下，说：“哥哥旁边的是弟弟，弟弟旁边的是哥哥。” 哥哥 [gēge] - older brother 弟弟 [dìdi] - younger brother 双胞胎 [shuāng bāo tāi] - twins (siblings) 长 [zhǎng] - to grow 得 [de] - used after a verb or adjective to link a complement describing the result or degree 一模一样 [yì mú yí yàng] - exactly the same, identical 经常 [jīng cháng] - often, frequently 知道 [zhī dào] - to know 孩子 [hái zi] - child, kid 吃饭 [chī fàn] - to eat, to have a meal 服务员 [fú wù yuán] - waiter/waitress, attendant 问 [wèn] - to ask 一下 [yí xià] - a little bit, a moment 旁边 [páng biān] - beside, next to