This is the 1720th most frequent Korean word.
이들도
"이들도" means "these too" or "they also" in English.
Here, '이들도' refers to 'they' inclusive of the subject previously discussed, emphasizing that they as well are involved.
이들도 새로운 도전을 받아들였어요.
They also embraced the new challenge.
In this sentence, '이들도' indicates a group that also requires care, mirroring the protection given to nature, and includes them within the discussion scope.
우리가 자연을 지켜야 하듯이 이들도 보살핌이 필요해요.
Just as we need to protect nature, they also need care.
The use of '이들도' here underscores their effort as an additional action complementary to others who are working towards problem-solving, showing inclusion.