您要查找的是不是：
- a letter of great urgency 非常紧急的信
- This is a matter of great urgency. 这是一件十分紧急的事情。
- I'm writing a letter of thanks to them. 我在给他们写一封谢函。
- A good face is a letter of recommendation. [谚]漂亮的面孔就是最好的介绍信。
- He is fishing for information by a letter of inquiry. 他写信询问，希望打听一下消息。
- I hope a letter of admission will be issued to me in due course. 希望能将入学证书及时寄我，并盼早日复信。
- Within two days I received a letter of acceptance from the manager. 不到两天，我就收到了经理写来的录取信。
- Send a letter of application in your own handwriting. 寄一封手写的申请信或求职信。
- He stormed into the office, flourishing a letter of complaint. 他挥舞著一封投诉信冲进了办公室。
- I waited on him with a letter of recommendation. 我持一封介绍信去拜访他。
- You must pen a letter of thanks to your uncle. 你必须给叔叔写一封感谢信。
- We are in receipt of a letter of complaint. 我们已收到一封抗议信。
- Hence, it is of great urgency to solve the water resources problem in Beijing. 解决首都水资源问题，已经到了刻不容缓的地步。
- He is asked to write a letter of recommendation. 有人请他写推荐信。
- To combat drought and protect the seedlings is a matter of great urgency. 抗旱保苗, 迫在眉睫。
- A good countenance is a letter of recommendation. 一副善良的相貌是一封推荐书。
- Therefore study the collision probability, as a matter of great urgency. 因而研究其碰撞的可能性，成为一项刻不容缓的工作。
- You were up for a letter of commendation. 有一封你的保举信。
- Could you write a letter of recommendation for me? 你能帮我写一封推荐信吗?
- I need to apply a letter of credit from your bank. 我想从贵行申请一张信用证。
