回溯測試
This rhythm that I just showed you, you have to go back and see it for yourself.Go through and do some back testing. 我將市場節(jié)奏秀給你看了，你最好回去再好好看看，往前看看復復盤。
Rose bushes shoot again after being cut back. 玫瑰叢修剪後還能再長出新枝。
He trudge three hour in the snow to get back home. 他在雪中跋涉三個鐘點才回到家。
The crowd fell back to let the players through. 人群后退讓運動員們通過。
Do exercise every day and you'll be back in condition. 每天鍛煉鍛煉，你很快會恢復健康的。
