fingertip

指尖、指端

She touched the wet paint lightly with her fingertips.

她用指尖輕輕碰了一下未乾的油漆。

隨手可得、唾手可得常與 at 連用

With this app, all the train schedules are at your fingertips.

有了這個應用程式，所有火車時刻表都隨手可得。

瞭若指掌、如數家珍指知識

He has the whole company's sales figures at his fingertips.

他對全公司的銷售數字瞭若指掌。