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ore than 1,000 important inventions 2. 那天你真勇敢,一個(gè)把火撲滅了。 _______________________________ ____________________ that day. 3. 他們決定探索那片陌生區(qū)域。 They __________________________ ______________. It was brave of you to put out the fire all by yourself decided to explore the unknown area 4. 如今,越來(lái)越多的人在推動(dòng)環(huán)境的保護(hù)。 Nowadays, ________________________ _________________________________ ______________________. more and more people are pushing for the protection of the environment Preview the next lesson.