Well you only need the light when it's burning low

残灯淡影思春曦

Only miss the sun when it starts to snow

唯见飞雪慕暖阳

Only know you love her when you let her go

昔人已去知情深

Only know you've been high when you're feeling low

卧心追念峥嵘日

Only hate the road when you’re missing home

乡愁暗涌恨旅遥

Only know you love her when you let her go And you let her go

人去徒留空喜欢

Staring at the bottom of your glass

醉然端目杯中浅

Hoping one day you'll make a dream last

盼君初心久未变

But dreams come slow and they go so fast

匆匆梦来匆匆去

You see her when you close your eyes

魂绕梦萦映眼帘

PS，第一次翻译，不是很切主题。