They tinkered with the engine…
他們修了修發(fā)動機。
辭典例句
They tinkered with the engine.
他們修了修發(fā)動機。
辭典例句
The chemists have tinkered with heat and metal catalysts to refine their materials.
化學家們修補了熱催化器與金屬催化器以精煉材料.
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The Chemists have tinkered with heat and metal catalysts to refine their materials.
化學家擺弄熱和金屬催化劑來提煉.
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