例句與造句

1. Jack pines are also susceptible to scleroderris canker ( " Gremmeniella abietina " ).
2. A severe Scleroderris canker infection can sometimes be disastrous, as the fungus survives on the pine cones, killing any new seedlings within two years.
3. Early signs of a Scleroderris canker infection includes a purple tint in the needles and, more evidently, the falling off the needles in the wrong season.
4. It's difficult to find scleroderris canker in a sentence. 用scleroderris canker造句挺難的