| 单词 | test tube |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔START〕Adding acid to the test tube starts a chemical process which leads to the formation of crystals. 把酸加入试管就会产生化学反应，最后形成晶体。朗文写作活用〔THERE/NOT THERE〕When acid is present, the chemical in the test tube turns red. 存在酸的话，试管内的化学物就会变成红色。朗文写作活用〔rub〕Please rub the surface of the test tube dry before doing the experiment.在进行试验之前请先把试管的表面擦干。21世纪英汉〔test-tube〕Produced or cultivated in a test tube.试管的：试管中产生的或培养的美国传统Do not add glucose to the control but put five milligrams in each of the other test tubes.在每个试管中放五毫克葡萄糖，但别放在对照试管中。剑桥国际Place the test tube over the flame.把试管放在火上。剑桥国际 |
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