这些定时器可对一个输入PF1引脚的外部时钟，输入PPI_CLK引脚的外部时钟或对内SCLK 同步。的翻译：These timers to PF1 to an input pin of the external clock input PPI_CLK or on the SCLK pin external clock synchronization. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

These timers can be an external clock input pf1 pin, the external clock input pin or ppi_clk internal sclk synchronization.

These timers to PF1 to an input pin of the external clock input PPI_CLK or on the SCLK pin external clock synchronization.

These timers may input the PF1 pin to one exterior clock, inputs the PPI_CLK pin exterior clock or to in SCLK synchronization.

正在翻译，请等待...

These timers to PF1 to an input pin of the external clock input PPI_CLK or on the SCLK pin external clock synchronization.