Tonight I won't be all alone again because I'll be spending it with you.
Cantonese
孑影孤单
孑影孤單
kit3 jing2 gu1 daan1
to be alone by oneself
Cantonese
觉得孤单
覺得孤單
gok3 dak1 gu1 daan1
to feel lonely
Cantonese
孤单
孤單
gu1 daan1
lonely
Examples (Wiktionary)
Mandarin
孤单寂寞
孤單寂寞
gū dān jì mò
solitary and lonesome
Mandarin
其实你并没那么孤单 只需要逃离这状态
其實你並沒那麼孤單 只需要逃離這狀態
qí shí nǐ bìng méi nà me gū dān , zhǐ xū yào táo lí zhè zhuàng tài
You don't have to be lonely / As long as you can get away from this state of mind [official translation] You aren't actually that lonely / You just need to run away from this state [literal translation]