Petrol is refined from the crude oil we take out of the ground.
汽油是由地下开采的原油提炼而成的。
The technical fluorene has been refined from the heavy wash oil with xylene.
以重质洗油为原料，二甲苯为溶剂精制工业芴。
Elegant, Brief, elegant Brief but not simple, elegant and refined, departing from the conventional pattern.
雅致简约而不失简单，高雅而又别致，不落俗套。
Elegant, Brief, elegant Brief but not simple, elegant and refined, departing from the conventional pattern.
雅致简约而不失简单，高雅而又别致，不落俗套。
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