Too兔rich
突变 [词典] sudden change; change suddenly; [生] mutation; transilience; break; [例句]天气突变。There was a sudden change in the weather.
招妹0916
变异=variation名词;
<<动词: vary=These apples vary in size from small to medium.>>
variation名词:
2. an instance of this: a variation in quality.
3. amount of change: a temperature variation of 20°.
4. Every day without variationmy grandfather ate a plate of ham.
5. This delicious variation on anomelette is easy to prepare.