When you pin a translation, you can keep it for later use. To pin a speech translation please do the following:

• Go to Microsoft Translator
• Tap the speech icon
• Translate the sentence
• Tap the pin icon
• Tap the back button on your phone

 To retrieve the pinned translations please do the following:

• Go to Microsoft Translator
• Tap the clock icon at the bottom left of your screen
• Tap Pinned