「主力牆」

(pos:名詞)
<explanation>
yue:用嚟承受重量嘅#牆（量詞：埲／幅／道）
eng:bearing wall; a wall that provides significant structural support to the building structure
<eg>
yue:拆錯咗主力牆會影響成棟樓嘅結構。 (caak3 co3 zo2 zyu2 lik6 coeng4 wui5 jing2 hoeng2 sing4 dung6 lau2 ge3 git3 kau3.)
eng:If the bearing wall is (mistakenly) removed, the structure of the whole building will be affected.