adj.不可改变的

The laws of nature are unchangeable.
自然法则不可改变。
Her love for her child is an unchangeable truth.
她对孩子的爱是不变的事实。
The unchangeable smile on his face suggested he was confident.
他脸上不变的笑容表明他很自信。
Gold's value is unchangeable, making it a popular store of wealth.
黄金的价值是恒定的，因此它常被用作财富储存。
An unchangeable rule in the library is no talking during study hours.
图书馆的一个不变规定是学习时间不能说话。
Time is an unchangeable force that moves relentlessly forward.
时间是一个无情的、不断前进的力量。
The unchangeable law of gravity pulls objects towards each other.
万有引力定律使物体相互吸引，这是不变的。
His belief in justice is unchangeable, no matter what happens.
他对公正的信念坚定不移，无论发生什么。
A diamond's chemical composition remains unchangeable under normal conditions.
在正常条件下，钻石的化学成分保持不变。
The stars in the night sky are unchangeable, a constant reminder of the universe's vastness.
夜空中永恒不变的星星，提醒我们宇宙的浩渺。