Bonds can be issued for any period of time - some take up to 30 years to mature.
發行債券時確定的債券期限可以是任意一段時長，一些債券的期限可以長達30年。
There"s also a Period which can be used to represent any period of time, like “two years, three months, seven days, four hours, fifty mintues”.
還有一個 Period類來表示任意的時間週期，如“兩年、3個月、7天、4小時、50分鐘”等。
I don’t remember any period of time where I hated the English language, this is partly because I always reminded myself that you won’t excel in any thing if you hate it.
any period of time
任何時段
例句：
Bonds can be issued for any period of time - some take up to 30 years to mature.
發行債券時確定的債券期限可以是任意一段時長，一些債券的期限可以長達30年。
There"s also a Period which can be used to represent any period of time, like “two years, three months, seven days, four hours, fifty mintues”.
還有一個 Period類來表示任意的時間週期，如“兩年、3個月、7天、4小時、50分鐘”等。
I don’t remember any period of time where I hated the English language, this is partly because I always reminded myself that you won’t excel in any thing if you hate it.
我不記得我有過任何討厭英語的時候，部分原因是我總提醒自己，如果你討厭什麼事情，是不可能把這件事做得出色的。