(Brit. informal)affirm something emphatically
(英，非正式)斷定，一口咬定
his informant swore blind that the weapons were still there.
他的線人一口咬定說武器還在那里。
(US Law)obtain the issue of (a warrant for arrest) by making a charge on oath
(美律)經宣誓保證所控屬實后發(fā)給（拘捕證）
To use abusive, violent, or blasphemous language against; curse.
咒罵，詛咒：以骯臟、激烈或褻瀆的語言辱罵；詛咒
To have great reliance on or confidence in
非常依靠或信賴…
He swears by his personal physician.
他很信任他的私人醫(yī)生
To have reliable knowledge of; be sure of
對…很明了；確定…
I think she said she was going to the library, but I couldn't swear by it.
我想她說過要去圖書館，但我不肯定
To take an oath by
以…起誓
He swore by all the angels and saints of heaven.
我以天堂中所有的天使和圣人的名義起誓
To administer a legal or official oath to
使…作法律或就職宣誓
swear in a mayor.
使市長宣誓就職
To pledge to renounce or give up
保證棄絕或放棄
She has sworn off cigarettes.
她已保證戒掉香煙
To swear out (a warrant for arrest) by making a charge under oath.
經宣誓保證屬實后而獲得（逮捕令）