Physical Strain:
* The heavy lifting put a strain on his back.
* The long journey strained her patience.
* The athlete was suffering from a strain in his hamstring.
Emotional Strain:
* The pressure of her new job put a strain on their relationship.
* The pandemic has put a strain on everyone's mental health.
* She felt the strain of trying to juggle work and family life.
Figurative Meaning:
* The thin rope was under strain from the weight.
* The company is straining to meet its deadlines.
* The government is straining to control the economy.
Other:
* There are many different strains of the flu virus.
* The musician played with a strain of melancholy in his music.
* The strain of the fabric was very strong.
Remember, "strain" can be used as a noun or a verb, so pay attention to the context to understand its meaning.