| 争分夺秒 | zhēng fēn duó miǎo | lit. fight minutes, snatch seconds (idiom); a race against time; making every second count | |
| 分秒必争 | fēn miǎo bì zhēng | seize every minute and second (idiom); not a minute to lose; every moment counts | |
| 秒针 | miǎo zhēn | second hand (of a clock) | |
| 毫秒 | háo miǎo | millisecond, ms | |
| 秒表 | miǎo biǎo | stopwatch |
| 1 | The champion is leading by eighteen seconds. | |
| 2 | Time flies, in the blink of an eye, one second has passed. | |
| 3 | He ran very fast and crossed the finish line in less than a second. | |
| 4 | At the moment you give the command, the robot will move. | |
| 5 | This job only requires you to spend one second to complete. |