钥匙

我今天忘记带钥匙。

wǒ jīn tiān wàng jì dài yào shi.

I forgot to bring my keys today.

一把精巧的小小黄铜钥匙不仅能打开坚固的铁门，更能成为开启探索智慧世界大门的象征钥匙。

yī bǎ jīng qiǎo de xiǎo xiǎo huáng tóng yào shi bù jǐn néng dǎ kāi jiān gù de tiě mén, gèng néng chéng wéi kāi qǐ tàn suǒ zhì huì shì jiè dà mén de xiàng zhēng yào shi.

A delicate little brass key can not only open a solid iron door, but also become a symbolic key that opens the door to explore the intelligent world.