Meat adulteration is one of the worldwide challenges for food quality control.

　　肉與肉制品摻假是食品質(zhì)量控制面臨的重要挑戰(zhàn)。

　　Lawson writes so well: in plain English, without fuss or affectation.

　　勞森寫得很好：英文通俗易懂，樸實無華又不矯揉造作。

　　He raised his eyebrows with an affectation of surprise.

　　他揚起雙眉裝出一副驚奇的樣子。

　　Kay has no affectation at all.

　　凱一點也不做作。

　　I wore sunglasses all the time and people thought it was an affectation

　　我成天戴著墨鏡，大家都覺得我在裝酷。