例句與造句

1. Clean timber has no knots in it .
   光潔的木料沒有節(jié)子。
2. Nothing would burn like that except clean timber .
   除了光滑直溜的劈柴，沒有別的東西能這樣耐著的。
3. It's difficult to find clean timber in a sentence. 用clean timber造句挺難的