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单词
天然气由甲烷
例句
DEFINITIVE EXAMPLES 权威例句
Natural gas is composed of methane, ethane, propane and butane.
天然气由甲烷
、乙烷、丙烷和丁烷组成。
剑桥国际
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to come in
to come into
to come into existence
to come into force
to come into use
to come loose
to come off
to come on to
to come out
to come out in the open
to come out on top
to come out with
to come round
to come running
to come through
to come to
to come to a boil
to come to an agreement
to come to an end
to come to blows
to come to grips with
to come to the boil
to come to the top
to come together
to come under
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更新时间：2025/7/23 5:51:18