This is the 3400th most frequent Chinese word.
带病
"带病" means "to carry an illness" or "to work or act while sick."
带病 means 'despite being sick' and implies perseverance even when not feeling well.
他带病坚持工作。
He continued to work despite being ill.
带病 here indicates attending class despite illness, showing that illness affects one's performance.
带病上课让我感到精力不足。
Attending class while being ill makes me feel lacking in energy.
带病 is used to suggest that participating in the competition while ill is not advisable.