to drop; to lose; to clean off (dirt, makeup, paint, etc.); to remove (e.g. stains or facial hair); to lose (a match); to reject (an applicant); to lower (e.g. shoulders or voice)
Examples (1 in total)
彼はいかなる困難に出会っても、気を落とすようなことはない。
He is never discouraged, no matter what difficulties he may face.