塑料吸管绝对不是塑料污染的最大来源，但是它们最近饱受抨击，因为大多数人不需要用它们来喝饮品，也因为它们尺寸小、重量轻，无法回收利用。

Plastic straws are by no means the biggest source of plastic pollution, but they've recently come under fire because most people don't need them to drink with and, because of their small size and weight, they cannot be recycled.

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在过去，制造业就是创新、经济增长以及体面工作的最大来源。

Manufacturing is the one system where you have got the biggest source of innovation, the biggest source of economic growth, and the biggest source of great jobs in the past.

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英国仍是其收入的最大来源。

Britain is still its biggest source of earnings.

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