【TOEFL核心詞匯】No.9 車床
來源：滬江聽寫酷
2012-12-02 08:00
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只聽寫例句。前面的單詞不用聽寫。注意有兩個(gè)"——"符號(hào)。
In the late sixteenth century the glass lathe was introduced, making it possible to ground several lenses at once and also to produce——as objects of curiosity——powerful, thick concave lenses.
