Bell curve
鐘形曲線
?? 詞語組成解析
bell
[bel]
n. 鐘，鈴;鐘聲，鈴聲;鐘狀物;[建]圓屋頂;
vt. 敲鐘;系鈴于，給…裝上鈴;使成鈴狀;把…放在鐘形罩內;
vi. 使象鐘狀地張開;鳴鐘;
curve
[k?v]
n. 弧線，曲線;曲線狀物;彎曲物;[棒]曲線板;
vt. 使彎曲;使成曲線;使成弧形;
vi. 彎曲;彎成曲線，彎成弧形;沿曲線行進;
adj. 彎曲的;曲線形的;
??? 情景例句
That's it.
對啦
How long have you had this pain?
疼痛多久了？
What's the matter with him?
他怎么啦？