On serious ground, I would try to ensure a continuous stream of
supplies.
The commentators take this as referring to forage and plunder,
not, as one might expect, to an unbroken communication with a home
base. One text, indeed, gives the reading 掠其食. Cf. § 13. Capt.
Calthrop’s “be careful of supplies” fails to render the force of 繼.
On difficult ground, I would keep pushing on along the road.
Capt. Calthrop’s “do not linger” cannot be called a translation,
but only a paraphrase of the paraphrase offered by Ts‘ao Kung:
疾過去也 “Pass away from it in all haste.”