下凹
拼音：xià āo英文解釋：
【醫】 ala alba lateralis; fovea inferior; fovea posterior; fovea vagi相關對話：
- 車輪在泥路上留下凹痕。Wheels leave grooves in dirt roads.
- 飾板在天花板、圓屋頂、拱腹、拱頂內的下凹裝飾鑲板A decorative sunken panel in a ceiling, dome, soffit, or vault.
- 車輪在泥濘的路上留下凹痕。Wheels left grooves in a muddy dirt road
- 引擎蓋上上凸下凹，儘是些痕路。Indentations up and down the bonnet.
- 飾板在天花板、圓屋頂、拱腹、拱頂內的下凹裝飾鑲板A decorative sunken panel in a ceiling, dome, soffit, or vault