Tougher
in example sentence
And people thought the sugar coating on our cells was like a protective coating that somehow made our cells stronger or
tougher
.
More example sentences with word tougher
2008 and 2009 were a little
tougher.
I know that they were
tougher
for a lot of people, not just me.
They produce six different types of silk, which is spun together into a fiber,
tougher
than any fiber humans have ever made.
And at each threshold, the going gets
tougher.
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