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Level 18

Unit 9, Lesson B

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a breath of fresh air
someone or something that makes a situation feel new, different, and exciting
a drop in the ocean
a very small amount compared to the amount needed
as clear as mud
very difficult to understand
a walk in the park
something that is very easy to do, and usually pleasant
set in stone
to be fixed and unable to be changed
the tip of the iceberg
a small, noticeable part of a much bigger problem
under the weather
not completely well
up in the air
uncertain and with an unknown result