ashfall的读音 ashfall中文意思
读音
n. 火山灰沉降层; 火山灰下降ashfall 用法和例句
- Ashfall would cover the western united states and also enter the jet stream with the potential to cripple air transportation and threaten the world 's food supply .
- 沉降火山灰将覆盖美国西部，并进入喷气流，从而造成航空运输瘫痪，并威胁世界的粮食供应。