21.   Skim the surface to remove any impurities.

22.   Skim the surface.

23.   The film takes on so many intimate relationships and issues that it sometimes has to skim the surface to accommodate all the information and complexity in the script.

24.   The island is a tropical cloud skimming the surface of a pineapple reduction, with a coconut biscuit thrown in as a kind of life raft.

25.   The Intuit Inc. insider-trading case cracked by federal regulators may have barely skimmed the surface of securities scams on Wall Street, investment professionals and lawyers say.

26.   They are easily outdated and often skim the surface of thorny topics.

27.   To grasp the breadth of the site, which went online last week at historywired.si.edu, one need only skim its surface.

28.   Unfortunately, The Ardsthorpe cannot satisfy itself simply with the Starr report, which only skimmed the surface.

29.   Working from bottom to top, skim the surface lightly to knock down the high spots and subdue the pattern.

30.   The Real Blonde skims the surface with its mild satire of the industry.