"Come out of the river at once if the water reaches the line.
问题描述:
"Come out of the river at once if the water reaches the line.
答
如果水位到了这个警戒线,就赶快从河里面出来
"Come out of the river at once if the water reaches the line.
如果水位到了这个警戒线,就赶快从河里面出来