a be described as
b population不可数名词,a large number of修饰可数
d sb spend some time in doing sth.
a when it come to 就……而言
a 表示一段时间
c catch one's eyes吸引注意力
c 尽管,引导让步状从
a 除非,条件状从
b 不确定,立刻马上
c
a be described as
b population不可数名词,a large number of修饰可数
d sb spend some time in doing sth.
a when it come to 就……而言
a 表示一段时间
c catch one's eyes吸引注意力
c 尽管,引导让步状从
a 除非,条件状从
b 不确定,立刻马上
c