The lock fixed on the apartment door had served as my guard over ten years. Now it was not easy to open it as before.

管鍵服役已十年，如今靈動失先前。

Yesterday I rushed to a hardware store buying a new one. How difficult the installment was！I did not finish the job until evening.

疾趨市中購新鎖，换裝至夜一何難！