(Brit. informal)affirm something emphatically
(英，非正式)断定，一口咬定
his informant swore blind that the weapons were still there.
他的线人一口咬定说武器还在那里。
(US Law)obtain the issue of (a warrant for arrest) by making a charge on oath
(美律)经宣誓保证所控属实后发给（拘捕证）
To use abusive, violent, or blasphemous language against; curse.
咒骂，诅咒：以肮脏、激烈或亵渎的语言辱骂；诅咒
To have great reliance on or confidence in
非常依靠或信赖…
He swears by his personal physician.
他很信任他的私人医生
To have reliable knowledge of; be sure of
对…很明了；确定…
I think she said she was going to the library, but I couldn't swear by it.
我想她说过要去图书馆，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义起誓
To administer a legal or official oath to
使…作法律或就职宣誓
swear in a mayor.
使市长宣誓就职
To pledge to renounce or give up
保证弃绝或放弃
She has sworn off cigarettes.
她已保证戒掉香烟
To swear out (a warrant for arrest) by making a charge under oath.
经宣誓保证属实后而获得（逮捕令）