1·Barons had to swear an oath of allegiance to the king.
贵族须宣誓效忠国王。
—— 《牛津词典》
2·Before giving evidence, a witness has to swear an oath.
作证之前，证人必须宣誓。
3·But Jacob said, "Swear to me first." So he swore an oath to him, selling his birthright to Jacob.
雅各说：“你今日对我起誓吧。”以扫就对他起了誓，把长子的名分卖给雅各。
4·Tyndareus readily agreed and Odysseus proposed that, before the decision was made, all the suitors should swear a most solemn oath to defend the chosen husband against whoever should quarrel with him.
廷达瑞俄斯欣然应允。奥德修斯要求所有的追求者在国王作出决定之前庄严地发誓：无论谁获选，其他人都要捍卫中选者，反对任何与之争吵的人。
5·And my master made me swear an oath, and said, 'You must not get a wife for my son from the daughters of the Canaanites, in whose land I live.
我主人叫我起誓说：你不要为我儿子娶迦南地的女子为妻。
6·After being endorsed, the new cabinet will need to swear an oath of allegiance to His Majesty the King.
在获得批准之后，新内阁还将要宣誓效忠国王。
7·The simplest starts by the oath giver saying, "I swear by my virility."
最简单的由宣誓人这样说开始：“吾以吾男子气概之名发誓。”
8·In court you have to swear an oath that you will tell the truth.
在法庭上你必须发誓我自己说的一切话都是真的。
9·And they all answered him and said: 'Let us all swear an oath, and all bind ourselves by mutual imprecations not to abandon this plan but to do this thing.
他们就一起回答他说：“让我们一起发誓，用诅咒将我们绑在一起，不放弃这个计划，大家一起去做这件事。”
10·No: you must stay! I swear it — and the oath shall be kept.
不，你非留下不可！我发誓——我信守誓言。