深沟壁垒 | strong, impregnable fortifications

shēn深gōu沟bì壁lěi垒

Deep trenches and high ramparts; strong, impregnable fortifications.

为了应对可能到来的挑战，他们修建了深沟壁垒，确保了企业的长远发展。

In anticipation of potential challenges, they constructed deep trenches and high ramparts, ensuring the company's long-term development.

Era:

Ancient

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