youdao

He inflated the rubber dinghy with a foot pump.

他用脚踏泵给橡皮救生艇充气。

youdao

It has a bivalve shell, two strings which move the valves against one another, and a small pump that expels water (he is still working on the best design for the foot).

它具有双贝壳，分别由两根绳控制进行相对运动，还有用来排水的微型泵（他仍在寻找蛤足的最佳设计方案）。

youdao

"So KickStart went forward to design a range of agricultural technologies, the most significant of which has been the foot-powered treadle pump."

VOA: standard.2009.12.18

It has a bivalve shell, two strings which move the valves against one another, and a small pump that expels water (he is still working on the best design for the foot).

ECONOMIST: Robots

Exhibits include an eight-foot-long rotor, half of a hundred-and-fifty-ton truck, and a pump of Brobdingnagian proportions.

NEWYORKER: Unconventional Crude