directly involved in the most active or dangerous part of something
কোনো কাজের সবচেয়ে সক্রিয় বা ঝুঁকিপূর্ণ অংশে সরাসরি জড়িত থাকা
"Doctors were on the front line during the pandemic."
"মহামারির সময় ডাক্তাররা সামনের সারিতে ছিলেন।"
to be the first to do something innovative
to achieve a small success but fail in the larger goal
to sense something strongly without evidence
exactly as instructed
to adjust to new conditions or circumstances
to do one's fair share of work in a group