l quiet ly moodbrought some sorrow中文翻译意思

l quiet ly moodbrought some sorrow中文翻译意思 They are reading quietly[quiet]为什么加ly Please be quiet in our library and read (quiet)Please be quiet in the library and read (quiet)这个(quiet)怎么变?加不加ly? l was a quiet girl lx-4l + ly-1l=o 怎么解? loud与quiet等词 什么时候用后面加 Ly 的形式?请多举几个例子， 解方程组：{lx-1l+ly-5l=1 y-lx-1l=5} 已知lx-1l+lx+3l=13-ly-4l-ly+5l,求xy的最大值和最小值. 已知lx-1l+lx+3l=13-ly-4l-ly+5l,求xy的最大值和最小值 quiet quiet quiet Quiet quiet 如何画如下函数图象lx-2l+ly-2l≤2 已知lx+1l与ly-2l互为相反数求lxl+lyl的值 已知lx-2l=ly-3l互为相反数,则x+y=多少? 已知lx+ 2l与ly +7l互为相反数 ,求-x +y的值