hints:

序號(hào)不用寫(xiě)~

標(biāo)點(diǎn)符號(hào)不用寫(xiě)~
be at risk few of us have ever stopped to think about
be at risk 處在風(fēng)險(xiǎn)中 few of us has ever stopped to think about 很少有人去考慮