ink mark

例句：

1. 1. The ink mark on the paperis barely visible.
   纸上的墨迹几乎不可见。
2. 2. The ink mark on thewall has faded over time.
   墙上的墨迹随时间褪色了。
3. 3. The ink mark on the page was made bya pen.
   页面上的墨迹是由一支笔造成的。