例句與造句

1. He hasn't had problems with pine needle abortion for the past few years.
2. A return to a more normal winter could cause a resurgence of pine needle abortions, Pfister said.
3. Pine needle abortion occurs primarily in the western parts of Canada and the United States, Pfister said.
4. Some Western ranchers like Donnelly have resorted to clearing grazing land of pine trees to eliminate threat of the so-called " pine needle abortion, " which is estimated to cost ranchers millions of dollars in calving losses annually in this country.
5. It's difficult to find pine needle abortion in a sentence. 用pine needle abortion造句挺難的