### Chinese: 诞生12年，比特币在2021年迎来了几个里程碑事件。
### English: 12 years into its existence, Bitcoin <v>will</v> reach several milestones in 2021.
### Errors: There is a major accuracy/mistranslation error at "will" within <v></v>.

### Improved English: After coming into being 12 years ago, bitcoins ushered in several milestone events in 2021.
