Adjustable blade propeller pump
[机] 调节叶片螺浆泵
🧩 词语组成解析
blade
[bled]
n. 刀片，剑;（壳、草等的）叶片;桨叶;浮华少年;
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
and use their talents.
贡献他们的才能。
Messengers should neither be headed nor hanged.
两国相争，不斩来使。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？