1.rubber n.橡膠；橡皮；決勝局

Money plants and rubber plants are other all-time favorites.
金錢樹(shù)和橡膠樹(shù)也是永恒的選擇。

2.pollution n.污染

You'll help reduce waste and air pollution.
您可以協(xié)助減少?gòu)U物和空氣污染。

3.chronic a.慢性的；長(zhǎng)期的

Chronic pain is an invisible and agonizing symptom.
慢性疼痛是一種無(wú)形的痛苦癥狀。

4.hormonal a.激素的，荷爾蒙的

Doctors hypothesize that the main problem is the hormones present in most milk products, which interfere with normal hormonal function.
醫(yī)生假設(shè)主要的問(wèn)題在于牛奶中的荷爾蒙含量，會(huì)打亂正常荷爾蒙的功能。

5.graffiti n.在墻上亂涂亂寫

Graffiti may even be as old as writing itself.
涂鴉甚至可以說(shuō)和文字的存在一樣久遠(yuǎn)。