乘以四 meaning in English
quadruple
Examples
- Ten times four makes forty
乘以四得四十 - Mr jones : 20 . . . multiplied by 365 . . . multiplied by 45 . . . what ? that can ' t be right
琼斯先生：二十… …乘以三百六十五… …乘以四十五… …什么？那不对。 - You can take a 60 second count of the heartbeats , take for 30 seconds and multiply by 2 , or take for 15 seconds and multiply by 4 . compare your heart rate with the target heart rate
可以数六十秒，或者数三十秒再乘以二，又或者数十五秒再乘以四。将所得心跳率与目标心跳率比较。