And remember, though solar filters block most harmful radiation, you still need to take frequent breaks from looking directly at the sun.

请记住，虽然太阳能过滤器可以阻挡大部分有害辐射，但您仍然需要经常休息，不要直视太阳。

It won't reach those parts of the brain that do language acquisition. A block keeps it out. We call this block the effective filter.

它不会到达大脑中负责语言习得的部分 一个街区把它挡在外面 我们称这个块为有效滤波器。