It had been a long and tiring day

　　這是漫長而又累人的一天。

　　It is very tiring work.

　　這是很累人的.工作。

　　I found the job tiring at first but I soon got used to it.

　　起初我覺得這份工作很累人，但很快就習慣了。

　　It's normal to feel tired after such a long trip.

　　這樣長途旅行之后感到疲勞是正常的。

　　I'm too tired even to think.

　　我累得連想也不愿意想。