courier GMAT专八雅思

our courier was a fount of knowledge.

我们的信使是消息的来源。

a train carrying freight; a courier carrying messages.

运货火车；递送消息的信使

the US courier market has been more or less sewn up by two companies.

美国快递市场几乎由两垄断。

You can see problems that aren't appear in a double-spaced Courier typescript. ( Yes, you could do this in the old days on galley proofs, but that was an expensive luxury for most writers).

（没错，以前在毛条校样时也能发现问题，但是这对于大多数作来说，是费力不讨好的）。