n.代用品；代替者
vt.代替；用 ... 代替；代以
Water is not a proper substitute for wine. 水不是酒的适当代用品。
Is saccharin a good substitute for sugar? 糖精是糖的良好替代品吗?
We recommend this brand as a good substitute. 我们推荐的新品种可以完全替代原来的产品。
His friend Humboldt was his substitute. 他的朋友洪堡接替了他。
There's no substitute for parents. 父母亲是没有别人可以代替的。
用作及物动词 (vt.)Only art can substitute for nature. 唯有艺术能代替自然。
You would substitute when the manager is away. 经理不在的时候由你来代理。
I had to substitute on a few things. 有几项我不得不换一换。
We substituted a red ball for blue to see if the baby would notice. 我们用红皮球换下了蓝皮球，看这婴儿会不会发觉。
They don't like potatoes, so we substitute rice. 他们不喜欢土豆,所以我们代之以大米。
substitute的基本意思是“代替”,指在需要时,把某事物用作代替者或用某事物替换某事物。
在美式英语中substitute只能用作及物动词,在英式英语中substitute可用作及物动词,也常用作不及物动词。用作及物动词时,接名词或代词作宾语;用作不及物动词时,常接介词for。
substitute还可用作名词,意为“代替品,替代者”。例如:The substitutes are pretty dreadful.代替的人相当糟糕。
