In addition, principal investigators, usually university professors, often need to get involved with very detailed and lengthy tasks of report generation, working with contractors, and non-scientific duties that can become difficult to balance with their «real» job of teaching and doing research. (sciencemag.org)
Lengthy task for higher ability students about Hitler's takeover of Czechoslovakia in 1938. (tes.com)
Indeed, the slow cooker takes the lengthy task of caramelizing onions and does all the work for us. (thekitchn.com)