train的ing形式是什麼

train的ing形式是training

例句

1、

You can't do much in the art line without training.

沒經過訓練，你在藝術行業是不會有多大作為的。

2、

To make the training realistic the simulation operates in real time.

為使訓練真實，模擬是實時運行的。

3、

They're in training for the big game.

他們正在為大賽進行訓練。