stopper词根词缀

stopper

[ˈstɒpə(r)]

n.阻塞物，（尤指）瓶塞;

复数： stoppers

例句:

1、

Using as excellent end stopper in the procedure of emulsion gathering of butylbenzene.

是丁苯等乳聚过程中非常优异的终止剂.

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2、

The stopper is too tight that it can't be withdrawn.

瓶塞太紧拔不出来了.

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3、

...a bottle of colourless liquid sealed with a cork stopper.

用软木塞封口的一瓶无色液体

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