7. ingentís mágnitúdinis. See the note on tantae audáciae, 13, 23.
8. neque enim umquam, 'for … never.' See the note on neque enim, 7, 12.
11. multae operae. See the note on mágní perículí, 13, 8.
12. duodévígintí pedum, i.e. in width.
dúxit. This word is used with reference to the progress of work on a wall or ditch from one end of it to the other.
15. opus. Compare this word with operae and labóre, line 12. Labor is used of heavy or exhausting labor, opera of voluntary exertion or effort, opus of that upon which one labors or of the completed work.
17. imperáverat. This verb takes an indirect object to express the person ordered (eí). The action commanded is expressed by the subjunctive in a clause introduced by ut and used as the object of imperó (ut necáret). Notice that this may be translated 'that he should kill' or 'to kill.' Compare now the construction with iubeó, 13, 22, with which the command is expressed by the accusative and infinitive (Herculem referre).
19. carne. Véscor is an intransitive verb and governs the ablative.
22. appropinquandí. See the note on 12, 26.
23. cónstitit, from cónstó. Compare 15, 10.