他们对魔法的信仰是永恒不变的。

Their belief in the Magic was an abiding thing.

youdao

就这样，我上路了。带着四个孩子和一只小羊羔，以及支撑我走下去的永恒不变的乐观主义精神。

That is how I found myself on the road with four kids, a baby lamb and nothing but my everlasting optimism to see me through.

youdao

“人们已经意识到，那种认为衰老即永恒不变状态——如宇宙的热寂——的观点不仅过于荒谬，”他说。

"People have begun to realize that the view of aging being something immutable - rather like the heat death of the universe - is simply ridiculous," he says.

youdao

Things like the platonic form are eternal, and their eternal changeless, indestructible because they are simple.

像柏拉图形式这样的东西是永恒的，而永恒的东西是不变的不可毁灭的,因为它们是简单的。

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