我和史蒂夫成了知己，几乎时刻相伴。Steve and I became soul mates, near-constant companions.你是她最亲密的朋友和知己。You are her closest friend and confidante.海内存知己,天涯若比邻.A bosom friend afar brings a distant land near....
The surface of the table must be sanded down.这张桌子的表面得用砂纸磨光.The icy roads were sanded after the snowstorm.暴风雪过后,冰冻的道路被撒上了沙.The stain will have to be sanded out.这斑点必须用砂纸磨掉....