1.pebble n.卵石；水晶；水晶透鏡

Happiness is like a pebble dropped into a pool to set in motion an ever-widening circle of ripples.
快樂就像是一塊被丟進池塘的卵石泛起陣陣漣漪。

Sometimes it takes but a single pebble to start an avalanche.
有時候只要一顆石子就能觸發一場雪崩。

2.orchard n.果園；果園里的全部果樹

His body was buried at the foot of the orchard.
他被葬在果園的一個角落里。

This is a pomegranate and orange orchard.
這是一個種植石榴和桔子的果園。

3.artillery n.炮，大炮；炮兵部隊

He had seen israeli artillery fire white phosphorus shells at gaza city, garlasco said.
他曾親眼見到以色列炮兵向加沙城發射白磷彈，garlasco說。

During battle, forward observers identify targets and direct artillery, mortar and aviation fire.
在戰爭中，前鋒探測隊員識別各種目標，并指導炮兵部隊、發射器與空軍部隊的開火。

4.ammunition n.彈藥，軍火

The federal reserve was running out of monetary ammunition.
美聯儲正在慢慢耗盡它的貨幣彈藥。

Sceptics have plenty of ammunition.
懷疑者有大量的可以用來攻擊的炮彈。