Hi Marriott You might find this link interesting. qid=20080211043117AAfeG45 Tom I THINK when we talk about time, you can use both (but I'm not sure). I'll be back in two hours.
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mariottIf I write "I'll ship the goods in 4 days." in a business letter, does this meanTo me it means that if I write the letter on Monday, I'll ship the goods on Friday -- not before or after. In other words, I will wait four days and then ship the goods.
I'll ship the goods within 4 days, or after 4days?