(1) The effect of water on fish is self-evident.
(2) The purpose of his gift to the director is self-evident.
It goes without saying that people should cherish time and study hard.
(4) He was finally admitted to the university, and it goes without saying that he was happy.
(5) The importance of environmental protection in today's society is self-evident.
(6) He committed a crime, and his family sent the judge a generous gift. The purpose is self-evident.
His son committed a crime, and he gave the judge a generous gift. Its purpose is self-evident.
(8) It is self-evident that bilingual teaching can promote foreign language learning.
His happy mood is self-evident.
(10) Now medical researchers have discovered another self-evident truth.