show up有炫耀的意思。
show up
英 [ʃəʊ ʌp] 美 [ʃoʊ ʌp]
如约赶到；出现；露面；（使）变清晰；（使）变得明显；（使）显现出来；使难堪；使尴尬；使丢脸。
Difficulties can show up a person's best qualities.
困难能使一个人的一些最好的品质显现出来。
His show-off only serves to show up his ignorance.
他的卖弄只不过暴露了他自己的无知。
Billy had been fasting against Cooper for three days before the debtor showed up.
比利为索债在珀门前静坐绝食三天，欠债人库珀才露面。
The students began to show up by twos and trees.
学生们开始三三两两地露面了。
