I'm just about to go to work at my service job at a grocery store.

我正要去一家杂货店做服务工作。

They discovered I could draw: their pencils and colour-boxes were immediately at my service.

他们发现我会画画：他们的铅笔和彩盒立即为我服务。

The next day at four o'clock in the morning, I was awakened by the steward whom Captain Nemo had placed expressly at my service.

第二天早晨四点，尼摩船长特别吩咐前来伺候我的管事人把我叫醒。