★ persevere（vi） ～ at/in/with sth ～ with sb （褒）坚持做某事（尤指不畏困难）
You’ll need to persevere if you want the business to succeed。
要想事业成功，就要持之以恒。
If you persevere with the work, you'll succeed in the end.
你如果把工作坚持下去，最终会取得成功的。
He persevered in the fact.
他力言坚持这事实。
If you persevere at your search for a job, you are sure to find something suitable in the end.
如果你坚持找工作，最后，你肯定会找到合适的工作。
◎ perseverance（n）坚持不懈，持之以恒
★ persist（vi） ～ in sth 坚持，执意
He will persist in riding that dreadful bicycle。
他执意要骑那辆破自行车。
He persisted in denying his knowledge of the matter.
他始终否认知道这事。
If you persist in doing that you will end up in trouble.
你要坚持做那件事的话，将来麻烦可多着呢。