详细解释:成一直线, 一致, 协调, 有秩序
英语解释：
形容词 in line:
awaiting something; especially something duebeing next in a line of succession副词 in line:
one behind another in a line or queue例句：
I have ordered more materials in line with what we decided yesterday.根据我们昨天的决定，我已多订购了一些材料。