释义：
need something 需要某物
need 后面可以加主语需要或对主语必要的名词。也可以用 It (that) 替代名词，成为 I need it I don't need it, Do you need that?等。
例句：
If you need anything, feel free to ask.
如果需要什么，尽管向我要。
I need more time to think it over.
我需要多点时间来考虑考虑。
Do you need an answer right now?
你现在立马需要答复吗？
对话：
A: I need a new bed to sleep on.
我得找个新床睡觉。
B: They sell them at the department store.
百货商场应该有卖的。
