1.Authorities in Paris have taken extra measures in an attempt to contain the COVID-19 pandemic.
in an attempt to 企图;试图
I poured my thoughts out on paper in an attempt to rationalize my feelings.
为了对自己的感情作出合理的解释,我把想法全都写在纸上 。
2.They have banned people exercising outdoors during the day to try and stem the surge in the number of infections and deaths.
stem 阻止
The authorities seem powerless to stem the rising tide of violence.
当局似乎无力阻止愈演愈烈的暴力活动 。