n. 操练;钻头;军事训练;(应对紧急情况的)演习;
vt.& vi. 钻(孔);打(眼);操练;训练;
vt. 作…演习,操练;
🗣️ 情景例句
It's raining cats and dogs outside.
外面下着倾盆大雨。
Poverty is the root of all evils.
穷困是万恶之源。
She always referred to them as 'the shifting population', for they came and went with such frequency that I never even got a chance to learn their names.