We submitted samples for DNA analysis.

我们把样本送去进行DNA分析。

The study recruited four volunteers who submitted fabric samples that they had worn as a sleeve while either unwashed or after washing with four different brands of soap — Dial, Dove, Native, and Simple Truth.

研究人员选择了 4 名人类志愿者，提交了他们在未洗澡或用四种不同品牌的肥皂（Dial，Dove，Native 和 Simple Truth）清洗后所穿的袖子织物样本。