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.

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

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

士兵还陆陆续续，有时一个两个，有时十几二十个，一般都饿肚子。

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

有时它们足迹并非单独出现，而是成群出现，表明它们以群居方式生活。

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

“在这里；单独面对你，或在你国家面前”。

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

泥鸟在空中飞飞去， 先是一只，然后是成对， 再是三三两两。

After them other couples followed, filling the whole dining hall, and last of all the children, tutors, and governesses followed singly.

他们后面还有好几对宾客，长长排满整个大厅，最后是单身孩子和男女家庭教师。

These universals have their being in the chair; universals or categories never exist singly or independently.

这些普遍性在椅子上存在;普遍性或类别从都不是单独或独立存在。

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，深沉圆润音符似乎是单独落在一个人耳朵上。

It requires an appreciation for the properties of singly ionised helium atoms, among quite a lot else.

它需要对单离子化氦原子特性有所了解, 以及其他很多东西。

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

显然有无数孩子在路上游荡， 就像一串珠子， 珠子之间距离很远， 有时是小结， 有时是单个。

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

然后是对他们购买土拥有合法所有权普通定居者，有时是单独， 有时是成群结队。

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

在另一个方向， 淡淡罗马烛光在树林间单独升起，一架火发火箭像一个预兆一样掠过平线。

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， 将脚放在每个结之间绳子上， 然后用手拉动， 逐个测试。

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

我看到一个方， 参与者，无论是单独还是成组，形成了非常类似于现代资本主义社会运作复杂系统。

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

根据我们经验， 在我们驯化产品中会发生突然和强烈显着变异， 这些变异是单独发生， 而且时间间隔相当长。

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，他们中每一个， 单独看，对维持这个更大数量任何一个个体贡献往往只是很小一部分。

" 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" .

“这只是我在城里两栋老房子，正在修缮，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。