lots of ups and downds是什么意思

lots of ups and downds是什么意思 是ups and downs还是up and down还是up and downs还是ups and down UPS of 10KVA and They ( )down the road and they saw lots of bThey ( )down the road and they saw lots of beautiful flowers.怎么判断填walked还是looked lots of trees were cut down and some kinds of trees () A.were disappeared B.disapeared us and down和ups and downs有什么区别? us and down和ups and downs有什么区别? 翻译millions of ups and downs life is full of ups and downs 翻译millions of ups and downs ups and Life is full of ups and 后面应补充什么? There was lots and lots of sonws是什麽意思 there was lots and lots of snow的汉语 People used to cut down lots of trees.(用now改写)People ____ _____ down lots of trees now. we go though ups and downs together此句中up down为什么要加s There are lots of buses and cars are lots of cars there and buses