rock

詞意辨析：

rock, stone, gravel, pebble

這些名詞均含“石、石頭”之意。
rock: 普通用詞，指構成地表最堅硬部分或突出於周圍地面的巨大岩石，也可指石頭或石塊。
stone: 普通用詞，泛指井然的或經加工的各類石頭，可大可小。
gravel: 集合名詞，常指用於鋪路的小石子和沙礫。
pebble: 多指海邊、河邊或沙中圓形的小卵石。

rock, sway, swing

這些動詞均含“搖動”之意。
rock: 多指猛烈地搖動或搖晃。
sway: 主要指樹枝等的來回搖動。
swing: 指有規律地前後、上下擺動，也可指不停地轉動。　

英文解釋：

名詞 rock:

1. a lump or mass of hard consolidated mineral matter
   同義詞：stone
2. material consisting of the aggregate of minerals like those making up the Earth's crust
   同義詞：stone
3. United States gynecologist and devout Catholic who conducted the first clinical trials of the oral contraceptive pill (1890-1984)
   同義詞：John Rock
4. (figurative) someone who is strong and stable and dependable--Gospel According to Matthew
5. hard bright-colored stick candy (typically flavored with peppermint)
   同義詞：rock candy
6. a genre of popular music originating in the 1950s; a blend of Black rhythm-and-blues with White country-and-western
   同義詞：rock 'n' roll, rock'n'roll, rock-and-roll, rock and roll, rock music
7. pitching dangerously to one side
   同義詞：careen, sway, tilt

動詞 rock:

1. move back and forth or sideways
   同義詞：sway, shake
2. cause to move back and forth
   同義詞：sway

字典網

詞型變化：

副詞:rockingly 動詞過去式:rocked 過去分詞:rocked 現在分詞:rocking 第三人稱單數:rocks 

相關對話：

1. The scandal rocked the government.
   這件醜聞把政府攪得十分狼狽。
2. He rocked back and forth in his rocking chair.
   他坐在搖椅里前後搖晃著。
3. The news of the president's murder rocked the nation.
   總統被暗殺的訊息震驚了全國。
4. The ship struck on a rock and sank.
   船觸礁沉沒。