Pronunciation: The twinning of /t/

source: BBC Learning English     2016年12月9日
Tim's looking at what happens when one word ends with a vowel followed by /t/ and the next word starts with a /t/ sound - and his favourite twin brother is here to help!
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It takes two to tango.

Tim: You might remember from a previous video that when the sound /t/ comes in between two consonants, we don’t usually pronounce it.
But what happens if there is a vowel sound before the /t/? and the next word also begins with /t/?
Well, in this case the two /t/ sounds join together to create one slightly stronger /t/. So ‘it takes two’ becomes 'it takes two'. This is an example of twinning or gemination. Here are some more examples.

It took him twenty years to get to the top.
You don’t have to cheat to pass the test.
You were right to be upset.
We took the overnight train to Venice.