非稳定封冻河流的英文：
unstable freeze-up stream
adj. 不稳定的，动荡的，易变的
Is the system unstable?
是系统不稳定吗？
The sound caused by unstable oscillations on the line.
由于线路上的不稳定振荡而引起的声音。
The barrister represent to the court that the defendant is mentally unstable
讼务律师向法庭陈述被告精神不正常
v. 冻结，凝固；冻僵，冻伤；冻牢，凝住；呆住；冷冻（食物）
n. 冻结；严寒期
Freeze! Come on, get up!
不许动，起来！
Do blackcurrants freeze well?
黑醋栗冷藏之后还好吃吗？
freeze a society's funds
冻结一团体的基金
n. 小河，溪；潮流；流，股；一连串；班，组
v. 飘扬；流；涌进，涌出；照射；按能力分班（组）
Droplets become streams,and streams,rivers
大江不舍细流
The stream splits into three smaller streams at this point.
这条溪在这里分岔出三条小溪。
The small streams rise when the main stream is high; when the main stream is low, the small streams nm dry.
大河有水小河满，大河无水小河干。