sample can

例句：

1. 1. The engineer used asample can to test the new material.
   工程师用一个样品罐来测试新材料。
2. 2. She carefullypoured the sample can into the test tube.
   她小心翼翼地将样品罐倒入试管中。
3. 3. Thecompany provided samples for potential customers to trybefore making a purchase.
   公司为潜在客户提供了样品，以便在购买前尝试。