... 主项变换 change of subject 主项存在问题the existence problem of subject 训练 train; drill; manage; practice; breeding 训练部队 train troops; 实战训练 exercises under battle conditions; 适应性训练 acclimatization training; 专业训练 professional training ...
However, the Court found a commerce clause problem with non-present sellers being subject to sales tax collection due to theexistenceof thousands of jurisdictions with non-uniform sales tax rules.