重點講解：
1. throw out 扔掉，丟掉(廢棄物)；
On the day I brought my little girl home from the hospital, I made my husband throw out all the remaining sweets.
就在我帶著我女兒從醫院回家的那一天^M=p*LyZV,HHZ。我要求我丈夫扔掉了家里所有剩余的糖果e5wA]TQMRp&G658Kr_dn。
2. break down （使）（物質）分解；
The oil is attacked by naturally occurring microbes which break it down.
原油受到了自然產生的分解油類物質的微生物的侵蝕1(QZJOn8ugmz。
3. pertain to 與…相關；屬于；適用（于）；
The restrictions he imposed pertained to the type and height of buildings and the activities for which they could be used.
他限制的是建筑物的種類和高度以及它們的用途Wrmt++S~AY^HpczC。
4. build up （使）積聚；（使）逐漸增加；
Slowly a thick layer of fat builds up on the pan's surface.
慢慢地，平底鍋表面積起了一層厚厚的油脂RConi*]G-mWgVp。