小事一桩

lǐ dà bó jiàn duō shí guǎng zhè xiē shì duì tā lái shuō jiǎn zhí shì xiǎo shì yī zhuāng

李大伯见多识广，这些事对他来说简直是小事一桩。

Uncle Li has seen so much that these things are a piece of cake for him.