It is the first mass extinction that humans will witness firsthand-and not just as innocent bystanders.
It is the first mass extinction that humans will witness firsthand-and not just as innocent bystanders.
这将是人类直接目击的第一次物种灭绝，而且人类也不仅仅是无辜的旁观者。
It is the first mass extinction that humans will witness firsthand-and not just as innocent bystanders.
这将是人类直接目击的第一次物种灭绝，而且人类也不仅仅是无辜的旁观者。