early 15c. (skimmer, the utensil, is attested from late 14c.), "to clear (a liquid) from matter floating on the surface, lift the scum from," from Old French escumer "remove scum," from escume (Modern French écume) "scum," from a Germanic source (compare Old High German scum "scum," German Schaum; see scum). Meaning "to throw (a stone) so as to skip across the surface of (water) is from 1610s. Meaning "to move lightly and rapidly over the surface of" is from 1650s, from the motion involved in skimming liquid; that of "to glance over carelessly" (in reference to printed matter) recorded by 1799. Related: Skimmed; skimming.
中文解释
1. skim <====> scum.2. sky "cover" => scum.3. scum is etymologically a 'layer on top' of something.
实用例句
1. Skim off the fat.
将油脂撇去。
来自柯林斯例句
2. Skim off any scum.
撇净浮沫。
来自《权威词典》
3. Skim the scum off the jam and let it cool.
撇去果酱上的浮沫，让它冷却。
来自《权威词典》
4. It's important for you to skim through the text.
