attempts是什么意思？

For some, the hardships of life without steady work eventually overwhelmed their attempts to keep their families together.

Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages

As the brain attempts to force the unsteady hand to do its bidding, the tension between the two results in a more compressed, psychologically denser expression.

And Sanchez constantly attempts to improve everything from seeding techniques out in the field to the promotion and sale of his produce online.

It's become so iconic that attempts to change its taste in 1985—sweetening it in a move projected to boost sales—proved disastrous, with widespread anger from consumers.