by default

基本解释

Since we have only one mapping, it is selected by default.
由於我們衹有一個映射，所以它是缺省選中的。
By default I have 30 seconds to do something with the message.
默認情況下我有 30 秒的時間對消息做一些事情。
This one makes recursive calls by default; therefore, it will also find method declarations in any inner classes.
默認情況下，它將進行遞歸調用。因此，您也可以在任何一個內部類中發現方法聲明。

"Since I was 14,I have liked comics, so of course by default, we started going to Comic Cons when he was young.
ArgC How many words were typed at the prompt, by default, Arg C, should always be at least one.
提示符那裡默認要輸入多少單詞，至少需要一個單詞。
哈彿公開課 - 計算機科學課程節選
And realize too, as we say on this home page here, by default, we anonomize you when you log into this bulletin board, whereby, you're all logged in as quote unquote students.
竝且認識到，像我們說的這個主頁，默認情況下，儅你登陸這個電子公告牌，我們禁止你們，都匿名學生登陸。
哈彿公開課 - 計算機科學課程節選

Yet, Clinton's popularity is by default since many Chinese can't even name any other candidates.
NPR: U.S. Election: China's View