?? 詞語組成解析
regular
['r?gj?l?]
adj. 有規律的;規則，整齊的;不變的;合格的;
n. 正規軍;主力（或正式）隊員;常客;
adv. 定期地;經常地;
reg國王+ular...的 → 國王統治的 → 規則的
convex
['k?n'veks]
adj. 凸的，凸面的;凸狀;凸形;
n. 多面體
??? 情景例句
My dear little boy just looked up at me as if to say,
我親愛的小男孩只是仰頭看著我 ，好像在說，
We've priced it at $ 98, almost 30% less than the competition.
我們訂價為98美元，幾乎少于競爭對手30%。
We informed him that the fissure extended for fifty years and was tow feet wide and four feet deep.
我們告訴他那個大裂縫長50碼，寬2英尺，深4英尺。