Ashfall
n. 火山灰沉降层; 火山灰下降
🗣️ 情景例句
If anyone has any objections, now is the time to voice them.
如果有人反对，现在就可以说出来。
They teach you English in an intensive course lasting just a week.
他们用一周的时间教速成英语课程。
shape in only two dimensions.
形态只有两种尺度。