sergeant major

sergeant-major的词性：
n.（名词）

1. Abbr. SgtMaj, SM
缩写 SgtMaj， SM

2. Used as a title for a noncommissioned officer serving as chief administrative assistant of a headquarters unit of the U.S. Army, Air Force, or Marine Corps.
士官长：在美国陆军、空军或海军陆战队中，用作担任司令部中主要行政助理而未受军衔军官的头衔

3. One who holds this title.
士官长：持有士官长头衔的人

4. Chiefly British A noncommissioned officer of the highest rank.
【多用于英国】 准尉副官：未任命的最高军衔的军官

5. A small damselfish (Abudefduf saxatilis) of warm seas, having a flattened body with dark vertical stripes. Also called In this sense, also called cow pilot
豆娘鱼：产于温暖海域中，身体扁平并有深色垂直条纹的小型少女鱼（豆娘鱼 豆娘鱼属） 也作 在此意义上也可称作 cow pilot