派生詞
其adj是releasable（能釋放的，可免除的），其n是releasee（被免除債務者，受讓人），
其n（指人）是releaser（釋放者，排氣裝置），亦有releasor（放棄權利者，讓渡人）。
真題例句
Alaska State Troopers released a statement saying they’ve arrested Arnold Demoski,26
These patterns suggest that some types of mental flexibility decrease relatively early in adulthood, but that the amount of knowledge one has, and the effectiveness of integrating it with one's abilities, may increase throughout all of adulthood if there are no diseases, Salthouse said in a news release.
函數
英文解釋
IUnknown::Release Decreases the reference count of the interface by 1.
ULONG Release();
Parameters：
None
Return Values：
Returns the new reference count. This value is for diagnostic and testing purposes only.
Remarks：The object that exports the interface deallocates itself when its total reference count reaches 0. Use the IUnknown::AddRef method to increase the interface's reference count by 1.
Applications must call this method to release only those interfaces that were explicitly created in a previous call to IUnknown::AddRef,IUnknown::QueryInterface, or a creation function, such as Direct3DCreate9.
Requirements：
Header: Declared in Unknwn.h.
中文解釋
作用:
将dx接口的數量減1，即釋放當前接口
函數原型：
ULONG Release(VOID);
返回值：
返回新的接口數。 此數值緊用于診斷和測試。
附注：
當繼承接口而來的對象的總引用數量達到0時，他會釋放自己。使用IUnknown::AddRef 函數可以增加
應用程序必須調用此函數釋放這些接口，這些接口包括之前調用 IUnknown::AddRef IUnknown::QueryInterface産生的，也包括通過一個産生函數比如Direct3DCreate9，産生的。
注：引自DirectX sdk文檔（翻譯不太準确，參考）。
定義
在QC中
QC是Quality Center 的縮寫.
A Releaserepresent a group of changes in an application ,which are ready for distribution at the same time.
在Quality Center中，人們常常需要辨析Cycle 和Release，這裡的Cycle的釋義為：
A cyclerepresents a development and QA cycle based on the project timeline.
在dhvp中
1.client廣播discover報文尋找dhcp服務器
2.dhcp-server回複offer報文
3.clinet正式發送request報文請求地址
4.server回複ack
這是整個dhcp獲取ip地址的基本流程
但是在某些情況下client在獲取dhcp-server給其分配的地址後會放棄該地址，
此時，client主動放棄地址就會向dhcp發送release報文解約。
