Hesselach's triangle

triangle ['traɪæŋɡl]

n. 三角形;三人一组;三角铁;三角板;

tri三+angle角→三角形

You must develop the muscles of your speech organs to produce unfamiliar sounds.

所以你必须训练和发展你的发音器官（声带、舌、口、鼻腔等）的肌肉，以便发出陌生的（另外一种语言）声音。

He turned white with amazement.

他害怕得脸都苍白了。

My dear friend, Mathilde. Let me tell you something. That necklace you borrowed from me wasn't a real diamond necklace. It wasn't valuable at all. The stones in the necklace were made of glass. It was worth five hundred francs at the most.

玛蒂尔德，我亲爱的朋友。让我告诉你吧。你向我借的那条项链并不是一条真的钻石项链。那条项链根本不值钱。项链中的宝石是玻璃做的。它最多值500法郎。