block number的用法和樣例：
例句
- You can choose whether this tree view is collapsed or expanded by default and the number of groups to display on each page.
可以選擇默認情況下此樹(shù)視圖是折疊還是展開(kāi)以及每頁(yè)所顯示的組數。 - So having said this, when you increase your weight then decrease the number of reps, but not the number of sets.
因此話(huà)講到這邊，你應該知道當你增加重量的時(shí)候，要減少次數，但不用減少組數。
