Xiāoxi hái méi xiěwán, wǒ jiù bù xiǎoxin àn le huíchējiàn, zhǐhǎo mǎshàng chèhuí.
I accidentally hit Enter before I'd finished the message, so I had to recall it right away.
Tips
history
回车 'carriage return' comes from the typewriter: 车 is the carriage, which went back to the left margin to start a new line. People often drop the 键 'key' and just say 按回车 'hit Enter'.