1. 不能改变的：nondurable; 不耐用的/非耐用品 | unalterable; 不能改变的 | unworldly; 非尘世的/天真纯洁的
2. 不变的：unalloyed 纯粹的 | unalterable 不变的 | unaltered 不变的
3. 不可移易的：unalluring 不迷人的 | unalterable 不可移易的 | unambiguous 清晰的
4. 坚定不移的：unalloyed 未搀杂的 | unalterable 坚定不移的 | unalterableunchangeable 不能改变的
1.
1. Another unalterable law of hot spots is that they cannot be planted, but must germinate wherever the wind and soil are right.
2. The ideology he opposed throughout his political life insisted that history was moved by impersonal tides and unalterable fates.
3. Hu said China's stance on the Taiwan question was unalterable and clear.
4. Chinese President Hu Jintao told a US Senate delegation in Beijing Tuesday afternoon that China's stance on the Taiwan issue is unalterable and clear.
5. Hu said that the stance of the Chinese government on the Taiwan issue is unalterable and clear.
adj
1. unalterable
1. remaining the same for indefinitely long times
Synonym: changeless
2. of a sentence
that cannot be changed
e.g. an unalterable death sentence
3. not capable of being changed or altered
e.g. unalterable resolve
an unalterable ground rule
Synonym: inalterable