Flanks
n. 拱侧翼；石侧面；两翼（flank的复数）
🗣️ 情景例句
If you don't apply to the relevant department your passport will never be approved.
如果你不向有关部门申请，你就得不到护照。
We've only sold our product at trade fairs, not in an on-going sales campaign.
我们的产品只在商展时展售，而没有办促销活动。
However, size and strength are not the only important things about this bridge.
然而，这座桥重要特点不仅是它的规模与强度。