你的孩子受过劣性刺激吗？

Did your child accept pessimal stimulation?

youdao

到目前为止，只有质子才享受过这种风险下的刺激。

So far, only protons have had this dubious pleasure.

youdao

到目前为止，只有质子才享受过这种风险下的刺激。

So far, only protons have had this dubious pleasure.

youdao