Degradation failure
[计] 退化故障
🧩 词语组成解析
🗣️ 情景例句
I estimate his age to be about 30.
我估计他的年龄大约30岁。
In secondary school, children study mathmatic、phsicas and chemistry.
中学的小孩会读到数学、物理和化学。
The kiwi, which is New Zealand's national bird, is one of these types of flightless birds.
几维，新西兰的国鸟，就是这些不能飞行的鸟类当中的一种。