英和和英

Two seconds.

A period of two seconds.

Fifteen seconds

3 seconds flat

every second

a second

Sixty seconds make a minute.

cycles per second

an angle of 10 arcseconds

a duration of time lasting one second

vibrations per second

within 10 seconds

sixty minutes

a ten‐second delay

one trillionth of a second

a second time

a second time

thirty-minutes of time

have a lead of 20 seconds

The lights will come on in a few seconds.

A minute has sixty seconds.

one thousand periods per second

the second

the second

how many minutes

in a second

One hundred twenty six minutes

per minute

one million periods per second

for a split second