torsades

"The teacher warned the students that unnecessary prolongations of their presentations would result in a lower grade. "

"My sister is very helpful, especially when it comes to organizing things. "

"A family history of diabetes can be predisposing people to develop the disease later in life. "

"The teacher used colorful posters as a decoration for the classroom. "

"The scientist used magnesium for the demonstration in the science lab. "

"The parrot's feathers were colorful, with shades of green, blue, and yellow. "

"An extract of rooibos and chamomile makes a refreshing infusion."

"The architect prolonged the design phase of the new library, adding more time for planning. "

"A virus can be polymorphic, changing its code each time it replicates to avoid detection. "

"After running to catch the bus, I noticed I had tachycardia, my heart was beating really fast. "

"The interval between the houses on the street was quite large. "

"Railway crossings without gates are highly dangerous."