the defensive football players who line up behind the linemen
coil such that current is induced in it by passing a current through the primary coil
Adjective:
being of second rank or importance or value; not direct or immediate;"the stone will be hauled to a secondary crusher" "a secondary source" "a secondary issue" "secondary streams"
inferior in rank or status;"the junior faculty" "a lowly corporal" "petty officialdom" "a subordinate functionary"
depending on or incidental to what is original or primary;"a secondary infection"
not of major importance;"played a secondary role in world events"
belonging to a lower class or rank
中英词源
secondary 第二的，次要的，从属的
second,第二的，-ary,形容词后缀。
secondary (adj.)
late 14c., from Latin secundarius "pertaining to the second class, inferior," from secundus (see second (adj.)). Of colors, from 1831; of education, from 1809. Of sex characteristics from 1780. Opposed to primary or principal. Related: Secondarily.
词态变化
副词 secondarily;
权威造句
1. More than five-thousand secondary school students have been expelled for cheating.
5,000多名中学生因为作弊被开除。
来自柯林斯例句
2. He had kidney cancer, with secondary tumours in the brain and lungs.
他患有肾癌，还有脑部和肺部的继发性肿瘤。
来自柯林斯例句
3. One in four pupils leaving secondary school can"t read or write properly.
中学毕业生中有1/4的人读写有问题。
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4. The secondary current sets up a magnetic field inside the tube.
二次电流在管子内部会产生磁场。
来自柯林斯例句
5. Entrance to universities and senior secondary schools was restricted.
