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" .

“这里；单独对你，或你的前”。

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。

She at once obeyed, tested each singly by putting her foot on the rope between each knot, and pulling with her hands.

她立即​​服从， 将脚放每个结之间的绳子上， 然后用手拉动， 逐个测试。

Apparently countless children loitered along the road, like beads set far apart in a string, sometimes in little knots, sometimes singly.

显然有无数的孩子路上游荡， 就像一串珠子， 珠子之间的距离很远， 有时是小结， 有时是单个。

I saw a place where participants, either singly or in groups, formed complex systems that very much resembledthe workings of modern capitalist societies.

我看到一个地方， 参与者，无论是单独的还是成组的，形成了非常类似于现代资本主义社会运作的复杂系统。

According to our experience, abrupt and strongly marked variations occur in our domesticated productions, singly and at rather long intervals of time.

根据我们的经验， 我们的驯化产品中会发生突然的和强烈显着的变异， 这些变异是单独发生的， 而且时间间隔相当长。

In another direction, pale Roman candles shot up singly through the trees, and a fire-haired rocket swept the horizon like a portent.

另一个方向， 淡淡的罗马烛光树林间单独升起，一架火发火箭像一个预兆一样掠过地平线。

Each of them, however, taken singly, contributes often but a very small share to the maintenance of any individual of this greater number.

然而，他们中的每一个， 单独来看，对维持这个更大数量的任何一个个体的贡献往往只是很小的一部分。

" This is only about my two old houses in the city, which are being repaired and altered so that the rooms can be let singly" .

“这只是我城里的两栋老房子，正修缮，可以单独出租房间”。

Carboxylic acids are a type of organic compound characterized by a carbon (C) atom doubly bonded to an oxygen (O) atom and singly bonded to a hydroxyl group (-OH) .

羧酸是一种有机化合物，其特征是一个碳（C）原子与一个氧（O）原子双键结合，并与一个羟基（-OH）单键结合。

It is first met on the upper margin of the silver fir zone, singly, in what appears as chance situations without making much impression on the general forest.

它第一次单独出现银杉地带的上缘，似乎是偶然的情况，没有给一般森林留下太多印象。

In the court-yard a cock crowed, others near by responded; then from the village, first singly, interrupting each other, then mingling into one chorus, was heard the crowing of all the cocks.

然后从村子里， 先是单独的， 互相打断，然后混成一团， 听到了所有公鸡的啼叫。