1、essential
絕對必要的;必不可少的;基本的
It was absolutely essential to separate crops from the areas that animals used as pasture.
將莊稼和放牧區分開絕對必要。
As they must also sprint over short distances, speed is essential.
由于他們也必須進行短跑,因此速度至關重要。
基本的;本質的;根本的
Most authorities agree that play is an essential part of a child's development.
大多數權威人士都同意,玩耍在孩子成長過程中起著非常重要的作用。
In this trial two essential elements must be proven: motive and opportunity.
在這次審訊中,必須證明兩個基本因素:動機和時機。
(某學科的)基礎,基本知識
the essentials of everyday life, such as eating and exercise.
飲食、鍛煉等日常生活的要素
This has stripped the contest down to its essentials.
這就使比賽精簡到最基本的環節。
2、annoy
使生氣;使不耐煩;使煩惱
Try making a note of the things which annoy you.
試著把煩心事寫下來。
It annoyed me that I didn't have time to do more reading.
騰不出時間多看會兒書讓我很煩。