Oral arch
[醫] 口弓, 硬腭弓
?? 詞語組成解析
oral
['?:r?l]
adj. 口頭的，口述的;口服的;屬于或關于嘴的;構成或使用言語的;
n. （尤指外語考試中的）口試;
arch
[ɑ:t?]
n. 弓形;拱門;拱形物;足弓，齒弓;
vt. （使）彎成拱形;用拱連接;向后彎;
vi. 拱起;成為弓形;
adj. 主要的;首要的;調皮的;淘氣的;
??? 情景例句
parents are invited to attend--
家長被邀請來參加
To intercept
阻止
but I could not conceal the fact that I was impressed by the size of the diamonds.
其鉆石之大給我留下了深刻的印象。