0Hi there.02br 02br 00I don't understand the meaning of the word 'edge' in the following sentence. 02br 02br 01i00"The river has shown few signs of life since last November. It may have been a combination of factors that pushed the fragile river ecosystem over the edge."02br 02br 02i00Thanks in advance,0-
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0 I must be a "critical condition"02br 01i00It may have been a combination of factors that01b00 led02b00 the fragile river ecosystem 01b00to the critical condition.02b02br 02i00 0-