We must supersede old machines by [ with ] new ones.我们必须以新机器取代旧机器.We must supersede old machines by new ones.我们必须以新机器取代旧机器。It is a cunning supersede the aristocracy , and make the king sole and absolute autocrat.一笔勾销, 而把...
When planting seedlings I prefer to mark out the rows in advance.种树苗的时候，我喜欢事先划出行来。The Tree Council promotes tree planting.林木委员会倡导植树造林。The boys scraped out a hollow place for planting trees.那些孩子挖了个坑准备栽树....