稳当的英文：
stable
firm
reliable

参考例句：

A sure hand on the throttle.
做事稳当，不会失手

A canoe is a ticklish craft
独木舟是不稳当的船。

Hard work is the surest avenue to success.
勤劳是成功最稳当的途径。

We mustn't take chances, we'd better play safe.
我们不能冒险，我们最好来稳当的。

Chew, for example, on the idea that "the surest way to smartness is through massive dumbness"
举例说，试玩味一下这句话:“通往明智的最稳当的道路就是大量的沉默。”

stable是什么意思：
n. 厩；马厩；属同一马主的赛马；训练处；课堂；破屋，陋室
adj. 稳定的；固定的；不动摇的

The horse stable is in the main barn,the cow stable is separate.
马厩在大牲口棚里，牛栏则分开在另外一个地方。

stable electron orbit
稳定电子轨道

The horse in the stable has broken out.
马厩里的那匹马跑了。

firm是什么意思：
n. 商号；企业
adj. 坚定的；坚固的；强有力的；确定的；坚挺的；严格的
v. （使）坚固；变坚实；加强；使坚定；回升
adv. 坚定地

Are the firm's finances sound?
这家公司的财务状况可靠吗?

His step was not as sharp and firm.
他的脚步不再像从前那样敏捷、坚实。

To become firm or gelatinous; congeal.
凝固凝结或变硬；冻结

reliable是什么意思：
adj. 可靠的；可信赖的
n. 可靠的人

She is a temperate reliable women.
她是一个可以信任的稳健的女人。

It is not always reliable to argue by analogy.
用类推法论证并不总是可靠的。

Simplicity is prerequisite for reliability.
简单是可靠的前提条件。