不幸的是，对环境管理者来说，小数目的预算没有多大用处，因为他们无法负担得起持续监测整个生态系统的费用。
Unfortunately it is not terribly useful for environmental managers on small budgets, because they cannot afford to monitor entire ecosystems continuously.
不幸的是，对环境管理者来说，小数目的预算没有多大用处，因为他们无法负担得起持续监测整个生态系统的费用。
Unfortunately it is not terribly useful for environmental managers on small budgets, because they cannot afford to monitor entire ecosystems continuously.
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