Sawteeth
锯齿, 锐齿( sawtooth的名词复数 )
🗣️ 情景例句
Yup.
是的。
Live to learn and learn to live.
生而学之，学而生之。
Jim is writing. Lily isn't writing. She's looking at the blackboard.
吉姆在写字。莉莉没在写字。她在看黑板。