英和和英

a trigger

endways pressure

a force-pump

a force [forcing] pump

wind up a spring

tread on the accelerator

step on the accelerator

jam down the accelerator

stamp on the accelerator

to press the button

to finger a button―fumble a button

having the spring unwound

the coming of spring

a push‐button traffic light

the incoming of spring

artesian pressure

a coiled spring

tensile pull

critical pressure

the livery of spring

press the Enter key

the pleasures of spring

to make a thumb-print （on a document）―seal a document with a thumb-print

pressure called back pressure

frictional gearing

touch a doorbell

the spring-tide

a forward spring

a button for forward track skipping

steam pressure