But the two successive years of insufficient harvests worldwide in 1988and 1989 forced people to the realization that the land on which we rely has been excessively exploited, and the pace at which it is becoming barren has quickened.
可是在一九八八及八九兩年全球糧食連續歉收，迫使人們意識到生養我們的土地已因被過度壓搾而加速貧瘠了。