a triple heart bypass operation的用法和样例：
- His son underwent a triple heart bypass operation earlier this year.
- Yeltsin, recovering from a multiple heart bypass operation, takes tea with his wife Naina, right, and granddaughter Masha, left, in his private rooms at the Central clinic hospital on Nov. 15, 1996.
- This proved helpful years later when he sewed polyester tubes into patients to perform heart bypass operations.
- Women are more likely to receie blood during heart bypass operations, which are performed on more than 465,000 Americans each year.