tā / chū mén / lǚ xíng / wàng / le / dài / bǎo xiǎn dāo / zhǐ néng / qù / biàn lì diàn / mǎi / xīn / de

他出门旅行忘了带保险刀，只能去便利店买新的。

He forgot to bring his safety razor when traveling, so he had to buy a new one at the convenience store.