His finger is poised over the Manual Fire button in case the thrusters don't kick in at the right instant, which could cause the Soyuz to skip off the edge of the atmosphere like a stone on a pond.

他的手指悬在手动启动按钮上，以防推进器不能立刻启动。如果没能正常启动，联盟号就会像投入池塘的石子一样，在大气层上方消失不见踪影。

youdao

That might not save a target from destruction but it would, at least, provide room for a pause for reflection before the pressing of the "fire" button.

或许，这并不能拯救什么，但是，至少在按下“发射”键前，人们会因为反思而有所犹豫。

youdao

In battle mode players can use the fire button to disable the opponent's CarBot.

ENGADGET: CarBot lets you settle those grudges with battle mode

Once you've lined up the shot you want, a tap on the circular on-screen button will fire the camera.

ENGADGET: Nikon WU-1a wireless mobile adapter for D3200 review: using Android as a remote trigger / wireless display

He arrives with a netbook and, in a few minutes, shows me how to download software which has a big red button asking you to fire the laser.

BBC: Anonymous, hacktivism and the rise of the cyber protester