FAA proposal could accelerate expansion of drone deliveries in the U.S.
©(AP Photo/Julio Cortez) Vocabulary: I will read the words, meanings, and sample sentences. Then, repeat after me. constrain /kuhn-STREYN/ [verb] – to limit or restrict something Strict school rules can constrain students’ freedom to choose their activities. retractable /ri-TRAKT-uh-buhl/ [adjective] – able to be pulled back or drawn in The stadium has a retractable roof for use during bad weather. proponent /pruh-POH-nuhnt/ [noun] – a person who supports an idea, plan, or cause Proponents of renewable energy believe it will help reduce pollution. impediment /im-PED-uh-muhnt/ [noun] – a thing that makes it difficult to do or complete something Lack of funding is one of the main impediments to building the…
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