揮手從茲去。

You waved me off as I started off.

更那堪凄然相向，

How could I stand facing the heart that was aching,

苦情重訴。

lamenting the sadness in this leave-taking? 

眼角眉稍都似恨，

Your eyes and brows registered a hue of grief,

熱淚欲零還住。

as tears watered, yet to shed.   

知誤會前番書語。

I know you got me wrong about what I wrote you earlier,

過眼滔滔雲共霧，

but soon the clouds and mists were gone away.

算人間知己吾和汝。

In this world only you and I are alter egos and loving mates.

人有病，

Do Heaven know it well,

天知否？

how do we suffer like hell?

今朝霜重東門路，

Heavy frost shrouded on the road to East Gate at dawn

照橫塘半天殘月，

while the waning moon still lingered and shone on the pond

凄清如許。

what a woeful scene it was!

汽笛一聲腸已斷，

Our hearts were broken as the sound of steamship whistle blowed,

從此天涯孤旅。

from now on we would be on the way to a lonesome journey endlessly

憑割斷愁絲恨縷。

To amend the broken heartstrings till we meet again,

要似崑崙崩絶壁，

must we have the resolve to let the cliffs of Mt Kunlun tumble down,

又恰像颱風掃寰宇.

or to let the typhoon sweep all over the whole world.

重比翼，

Then flying abreast without a line,

和雲翥。

again we are on cloud nine.

PS  It is said that Chairman Mao wrote the poem to his beloved wife, Yang Kaihui in 1923 when he headed to Huangpu Military Academy. (FYI, Mao was once the head of propagada for KMT.)  Since then the couple had never met again, for later Yang sacrificed her life after Chiang regime betrayed the revolution.  

Some textual research points out that Mao wrote this poem for someone else, not for Yang, but I would rather believe it is not true.