At a single motion of his hand, the room fell silent.

他手一挥，屋子里便安静了下来。

《牛津词典》

He grabbed at a protrusion of rock with his right hand.

他用右手抓住了一块凸起的岩石。

《柯林斯英汉双解大词典》

Most of them, after all, had not been at the battle and had only heard of the massacre at second hand.

他们中的大多数毕竟没有亲历那场战争而只是间接听说过那场大屠杀。

《柯林斯英汉双解大词典》

Of course,with signers,their first language has no written system at all, just hand gestures.

VOA: special.2011.04.13

Look in the packet at this letter near the top of the right-hand side of the page.

看一下这封信的,右手边最上面。

耶鲁公开课 - 弥尔顿课程节选

So at the moment left hand is at the start of this list of size 1, my right hand is at the start of this list of size 1, and now I need to merge these two lists.

现在左手手指指向这个大小为1的列表的开始,右手手指指向这个大小为1的列表的开始,现在我需要合并这两个列表。

哈佛公开课 - 计算机科学课程节选

There are also the moments at the end of a long week (with music turned up and a glass of wine at hand) of happily making flower arrangements for the entire house.

WSJ: Potting Rooms: A Place to Potter Around

For most of three decades James (Jim) Tisch learned the art of investing at the hand of his famous father, the blunt-spoken, buy-it-cheap financier Laurence A. Tisch.

FORBES: High On Loews

SERUM, being a privately owned company, committed financially and technically to the challenge at-hand of producing a new vaccine of the highest quality and at low cost affordable to African ministers of health.

FORBES: Corporate Entrepreneurship: Eliminating Disease via Public-Private Partnerships