One or Two
一块还是两块
Customer: Waiter, I've only got one piece of meat in my dish.
顾客：服务员，我盘子里怎么只有一块肉？
Waiter:Just a moment, sir and I'll cut it in two.
服务员：先生，请稍候，我去把它切成两块。

1.one piece of meat
meat是一个不可数名词，要表示单位数量，我们用a piece of 一片，一块
eg：The baby was given a piece of candy. 这孩子拿到了一块糖。
同类型的短语还有：
a cup of 一杯
a pair of 一套
a slice of 一片
a basket of 一篮

2.Just a moment
moment：片刻，瞬间，刹那
eg：She held us silent for a moment with a lifted hand. 她举起一只手让我们肃静了片刻。