修复那辆旧车是我父亲过去五年来一份出于热爱的辛苦工作。

Restoring that old car has been ___a ___labour ___of ___love for my father over the past five years.

对许多艺术家来说，创作作品不仅是一份工作，更是一份出于热爱的辛劳。

For many artists, creating their work is not just a job but ___a ___labour ___of ___love.

写小说需要极大的耐心；这真是一份出于热爱的艰辛劳动。

Writing a novel requires immense patience; it truly is ___a ___labour ___of ___love.