Practice is an integral part of language learning.

练习是语言学习必不可少的一部分。

Food, clothing, shelter and transportation are essential to life.

衣、食、住、行是生活中必不可少的。

Fish is always part of the dinner because it represents abundance.

鱼总是晚餐必不可少的，因为鱼象征着年年有余。

Contouring is pretty much the must-have, you just want a really really chiseled face.

修容基本上是美式妆容必不可少的了，要的是那种轮廓分明的脸颊。

And these are white rabbit lollies, because compulsory.

这些大白在新年也必不可少。

Smartphones, led by iPhone, have become an essential part of our lives.

iPhone引领的智能手机已经为我们生活中必不可少的一部分。

His faults are accepted as the necessary complement to his merits.

他的瑕疵在世人的眼中已经为他的优点的必不可少的派生物。

We really do think of every essential detail, from an oven and cooking rings fuelled by bottled gas, to mirrors in the bedroom areas.

我们考虑到每一个必不可少的细节，从烤箱、瓶装煤气点燃的烹饪灶到卧室的镜子。

This level of complexity makes comprehensive training imperative.

维和任务的复杂程度之高让全面的培训变得必不可少。

This sort of stylistic blending is a necessary part of developing one's own style, but it doesn't occur in a vacuum.

像这种不同风格的混杂糅在形你个人风格的过程中必不可少，却不是凭空发生的。

In America, where a car is usually essential to get to work, many borrowers would sooner lose their house, which explains why in the years after the crisis, mortgages were more likely to go bad than car loans.

在美国，汽车对于上班族来说常常是必不可少的，许多贷款人可能很快失去他们的房子，这解释了为什么在危机之后的几年，住房抵押贷款比汽车贷款更加容易恶化。

They are the possessions of the autonomous (self-governing) man of traditional theory, and they are essential to practices in which a person is held responsible for his conduct and given credit for his achievements.

自由和尊严（它们）是传统理论定义的自主人所拥有的，是要求一个人对自己的行为负责并因其业绩而给予肯定的必不可少的前提。

For those working from home, a well-equipped home office with a computer, keyboard, and perhaps a printer has become essential.

对于那些在家工作的人, 一个设备齐全的带电脑的家庭办公室, 键盘, 也许还有打印机已经变得必不可少。

We have adjusted our lives and our expectations and I believe we have seen a bit more clearly what is meaningful and essential.

调整自己的生活和期望，我相信我们已经更清楚地看到了什么是有意义和必不可少的。

This is an essential if you live in a city where there is rain.

如果你住在会下雨的城市，这件东西是必不可少的。

Listen, sunscreen up in the air is a real thing, people.

高空防晒必不可少。

And no Thanksgiving meal is complete without —that's right— turkey!

而感恩节大餐有一样东西必不可少，对，那就是火鸡！

So when you're promoting food, a photo is everything.

所以当你推荐食物时，照片是必不可少的。

The governors of five states told people to stay home unless they worked in areas considered essential like law enforcement, sanitation, grocery and food production and of course medical care.

五个州的州长告诉人们，除非他们在执法、卫生、食品杂货和食品生产以及医疗等必不可少的领域工作，否则他们必须待在家里。

First, gift in language learning is inevitable；second, I must say, perseverance is a decisive factor.

第一，学语言的天分必不可少；第二，坚持不懈的精神起着决定性的作用。