交换律 commutative law; law of commutation; commutability;
热门单词
- 人道主义
- 人道主义教育思想 humanistic education;
- 人道主义者 humanitarian
- 人间
- 人间万物
- 人间关系
- 人间地狱
- 人间天堂
- 人间春色
- 人间正道
- 人间沧桑
- 人间辛酸
- 人防
- 人防兵力部署 disposition of forces for people's air defence;
- 人防地下建筑物 underground air-raid shelter;
- 人防工程 air-raid shelters; civil air defence;
- 人防建设 building of people's air defence;
- 人防教育 education on people's air defence;
- 人防演习 exercise in people's air defence;
- 人防组织 organization for people's air defence
- 人防训练 training in people's air defence;
