rusty spot的用法和樣例：
例句
- When he tried it the rusty metal did not budge, and he came away with red flecks covering his fingers.
他試了一試，這生銹的金屬板一動(dòng)也不動(dòng)，他走到一旁，手指上滿(mǎn)上剝落的紅色的銹斑。 - Marble is a kind of natural material, have a lot of natural grain, form all sorts of different crackle that send form and tiny flaw or rusty spot in the surface.
大理石是一種天然材料，具有許多天然紋理，并在表面形成各種不同的發(fā)狀裂紋和細小瑕疵或銹斑。
