奶奶 nǎinai (paternal) mother grand- 您 nı́n you 坐 zuò to sit 不用 bùyòng to not need 没关系 méiguānxi it doesn’t matter 好吧 hǎo ba all right 谢谢 xièxie thank you 不客气 bùkèqi you’re welcome 让座 ràngzuò to give one’s seat to another 站 zhàn to stand 老人 lǎorén elderly person 帮助 bāngzhù to help