英和和英

within 10 seconds

Two seconds.

A period of two seconds.

Fifteen seconds

3 seconds flat

sixty minutes

every second

Sixty seconds make a minute.

cycles per second

one thousand periods per second

thirty-minutes of time

One hundred twenty six minutes

Thirty minutes

vibrations per second

an angle of 10 arcseconds

a ten‐second delay

one trillionth of a second

a duration of time lasting one second

ten minutes after six

one million periods per second

A minute has sixty seconds.

take ten minutes out

per minute

how many minutes

have a lead of 20 seconds

in a fraction of a second

two mortal hours

In ten minutes

Ten minutes left

at 15 meters a second