Filming most hunting sequences involves a great deal of waiting and a slice of luck,拍攝獵食的鏡頭通常必須花上長時間等待，還需要一點運氣

a great deal of許多的；大量的（后接不可數名詞）

The storm did a great deal of material damage.

暴風雨造成了大量物質損失。

He talked a great deal of sense.

他講得很有道理。

a slice of一片 ...

Give me a slice of bread please.

請給我一片面包。

She filmed a slice of bread with butter.

她涂一層薄薄的奶油在一片面包上。

killer whales focus on one particular spot.虎鯨會聚集在某個地點

focus on集中在

The noise made it hard for me to focus on work.

噪音讓我無法集中注意力工作。

They must focus on the quality of the products.

他們必須注重產品的質量。

The killer whales have learnt to target elephant seal pups as they first venture into the water虎鯨學到在小海象首度大膽躍入海中之時瞄準獵物

learn to學習

I must learn to snatch at every chance to meet him.

我必須學會抓住一切機會同他見面。

She learn to triumph over her disability.

她學會了戰勝她自身的不足。