invisible ink

The spies use invisible ink. An advanced formula unknown to the British, the ink is made from gallic acid.

间谍们使用的是隐形墨水，一种英国人一无所知的高级配方。

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She smuggled to the Free French in neutral Lisbon secret messages written in invisible ink on her music.

她把秘密信息偷偷带到中立的里斯本，交给自由法国成员：那些信息全用隐形墨水写在乐谱上。

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Gerard immediately began planning an escape, and was able to communicate with allies on the outside via smuggled notes written in an invisible ink made from orange juice.

审判公布后，杰勒德立即开始制定周密的越狱计划。他想方设法用橙汁制成的无色墨水与外部的同伙秘密通信。

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Equipped with fetching white earphones, the pen plays sound files when its electronic nib is pressed against paper printed with special invisible ink.

这只笔附带一副吸引人的白色耳机，当把它的电子笔尖压在用特殊隐形墨水印制的纸上时，这只笔会播放声音文件。

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Description : A revealing charm used to turn invisible ink visible again.

此咒语可令隐形墨水写的字迹显现出来.

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Do you have a pen that writes with invisible ink?

你有可以用隐形墨水写字的笔 吗 ?

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To protect yourself in future, all your office accoutrements should be discreetly marked with tippex, invisible ink or similar.

为了在将来保护好自己，你应该在办公室的所有装备上都仔仔细细地用记号笔、隐形墨水或类似的东西做上标记。

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Other unusual records include a collection of reports on flying saucers, and the recipes for invisible ink.

其他不同寻常的记录还包括一系列飞碟目击报告，以及隐形墨水的配方。

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The messages app also now includes a new emoji prediction feature, along with the ability to include handwriting and video previews, as well as new bubble effects including invisible ink and the ability to change text sizes.

短信应用现在多了一项全新的表情符号预测功能；除此之外，短信中可以加入手写及视频预览；还有包括隐形墨在内的全新气泡特效；还可以改变字体大小；

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Is that going to, like, squirt invisible ink or something?

这个是不是会喷出隐形墨水之类的？

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It looked like a blank sheet of paper but there was a message on it in invisible ink.

这看起来像一张白纸，但上面有用隐显墨水书写的封信。

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