You can't tell, just by looking, whether pollen containing a foreign gene can poison butterflies or fertilize plants miles away.

光凭外观，你无从知道含有外源基因的花粉粒是否会毒害蝶儿，或是传播到几公里外使其他植株受精。

youdao

You can't tell, just by looking, whether pollen containing a foreign gene can poison butterflies or fertilize plants miles away.

光凭外观，你无从知道含有外源基因的花粉粒是否会毒害蝶儿，或是传播到几公里外使其他植株受精。

youdao