write back
US
UK write back vi phrasal: (send a written reply)
SC 给…回信 gěi huí xìn
TC 給…回信
TC 給…回信
Please write back soon.
Please write back as soon as you can.
write back to [sb], write [sb] back v expr: US (send a written reply to [sb]) (指以书面方式)
SC 给...回复，给...回函