We said singly, or in a group.

我们说好要么单独，要么一起。

It is imperative that you know that. Singly know it.

你必须知道那件事。仅仅是知道而已。

Together they could protect each other, but singly they were at my mercy.

他们在一起的时候，可以彼此相助；但是，一旦分开以后，他们就要落到我的掌握之中了。

Soldiers came singly and in pairs and dozens and they were always hungry.

士兵还陆陆续续地来，有时一个两个，有时十几二十个，一般都饿肚子。

" Here; singly to your face, or in the presence of your nation" .

“在这里；单独面对你，或在你的国家面前”。

Singly, in pairs, and in groups, settlers followed the trail he had blazed.

定居者单独地、成对地、成群结队地追随着他开辟的足迹。

Sometimes their prints occur not singly but in groups, suggesting that they lived in groups.

有时它们的足迹并非单独出现，而是成群出现，表明它们以群居的方式生活。

Clay birds flew into the air, first singly, then in pairs, then in threes and fours.

泥鸟在空中飞来飞去， 先是一只，然后是成对， 再是三三两两。

It was very low at first, with deep mellow notes that seemed to fall singly upon one's ear.

一开始声音很低，深沉圆润的音符似乎是单独落在一个人的耳朵上。

Then came the regular settlers with lawful titles to the lands they had purchased, sometimes singly and sometimes in companies.

然后是对他们购买的土地拥有合法所有权的普通定居者，有时是单独的， 有时是成群结队的。