As she reached her thirties, her biological clock started ticking louder, and she felt a growing desire to start a family.
Jet lag can really mess up your biological clock, making it difficult to adjust to a new time zone.
He dances expertly.
She plays the guitar expertly despite having started playing only last year.
She’s always had steadfast loyalty.
National morale has remained steadfast despite enemy advances.
He burned his letters lest she should read them.
She grabbed her brother’s arm lest she get lost in the crowd.
They should have heeded the warnings.
Why don’t you heed the doctor’s advice?
