Noun:

1. glass tube closed at one end

testoonn.头像银币testn.考验；试验；测试vt.试验；测试；接受测验test pushing device试推装置test library system题库系统test equipment tool测试设备工具Testacealobosiasina壳叶足亚纲testing environment测试环境testing certificate试验检定证书,检验证书Test Vehicle Engine实验用飞行器引擎test for allocation分配测试Test Support System试验支援系统test-setreduction测试集减少

1. He held the test tube in his hand thoughtfully.
   他沉思地把试管拿在手里。