A you tube的意思|示意

When you eat, food travels from your mouth to your stomach through a tube called the esophagus.

当你饮食的时候，食物从口经过食管到达胃里。

In fact you do not have to kill any animals for this kind of research because we do everything in a test tube.

其实，做这种研究，你根本用不着杀害任何动物，因为试验都是在试管中进行的。

You have a tube, a transparent — a tube — a hollow tube, and at the top of the tube you throw a ball through so it whips through the tube and it comes out.

用一根管子，一根透明中空的管子，从管子最上面，你丢进去一个小球，小球迅速穿过管子，飞出来。

When you finish a tube of mascara, toss the tube but keep the wand. Wash the wand thoroughly with soap and warm water, then use it to comb through your lashes after applying mascara.

当用完一管睫毛膏之后，记得把睫毛刷留下，将其用香皂和温水彻底清洗一番，这样刷出来的睫毛清晰，不结块。

Can you spot weld a tube to a sheet metal?

你能把一个钢管点焊到钢板上吗？

You only need a very small blob of glue, so one tube lasts for ages.

你仅需要很小一滴胶水，所以一管胶水能用很久。