Translate several words from a file in parallel

#!/bin/sh

function translate_line() {
    l=$(echo $1 | awk '{print tolower($0)}');
    echo -n "${l}:"; 
    echo `trans -no-auto -brief :en $l`;
} 
export -f translate_line
parallel --will-cite -k translate_line ::: `cat Lista-de-Palavras.txt`