地球の表面の約七割は、海水で覆われている。
About 70% of the Earth's surface is covered with seawater.
Listen to pronunciation
Example sentences
月の表面にはたくさんのクレーターがある。
There are many craters on the surface of the moon.
職人は木材の表面を丁寧に削り取った。
The craftsperson carefully scraped away the surface of the wood.
波で岩の表面が少しずつ削れている。
The surface of the rock is gradually being worn away by the waves.
顕微鏡で、金属表面の微細な傷を調べた。
Using a microscope, we examined the minute scratches on the metal surface.
Usage Notes
Refers to the outermost layer of an object or the outward appearance of a situation.
Sottaku
About Sottaku
Sottaku is an app for learning a growing range of Asian and European languages with a strong focus on SRS. It includes automatic flashcard creation for hundreds of thousands of words, grammar breakdowns in example sentences, language-specific study packs where available, adaptive quizzes, mobile apps, a browser extension, and community features. Give it a try now! All learning content is free with no limits on flashcards or study time.
Sottaku is built to match the habits of successful learners. By using Sottaku, you will naturally learn in the most efficient way possible, as proven by countless success stories in the language learning community.
Free Forever
Access all grammar guides, quizzes, and flashcards without paying a cent. Quality education should be accessible to everyone.
Smart SRS System
Our flashcard system uses the FSRS algorithm (also used in Anki) to optimize your review schedule and maximize retention.
Comprehensive Content
From hanzi, kana, hangul, and European vocabulary basics to grammar and reading practice where available, we have lessons for every level. Practice with quizzes tailored to your skill.
Community Chat
Ask level-appropriate questions and get help from the community. Learn together with fellow learners across every supported language.