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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