報數的用法和樣例：
例句
-
一至三報數！
Count off by threes! -
士兵們從左起四個(gè)一組大聲報數。
The soldiers counted off from the left by four. -
士兵們從右首開(kāi)始報數。
The soldiers numbered off from the right. -
士兵從右至左報數。
The soldiers numbered off, starting from the right-hand man.
