It is important to get the coals white-hot before you start.

在开始之前把炭火烧旺很重要。

《柯林斯英汉双解大词典》

Always read the instructions before you start.

使用前务请阅读操作说明。

《牛津词典》

Before you start on these chapters, clear your head.

在你开始这些章之前，先理清思路。

《柯林斯英汉双解大词典》

Mike Lizotte of American Meadows, an online store, says before you start, you need know whether to plant tender bulbs or hardy bulbs.

VOA: special.2011.04.12

Those of you more comfortable, rest assured we'll start filling in some gaps before long if you're already familiar with this.

那些程度比较好的同学，我们马上来讲一下以前遗漏的问题,如果你们已经熟悉这门课，那会觉得那容易接受。

哈佛公开课 - 计算机科学课程节选

And actually before we start into today's topics, I want to remind everyone and hopefully you all do remember that our first exam is coming up and it's coming up in exactly a week, so it'll be a week from today, next Wednesday.

实际上在这之前，我还要提醒大家一下,希望大家都记得,我们的第一次考试就要到了,就在下周，距离今天正好一周，下周三。

麻省理工公开课 - 化学原理课程节选

Before you start, you need to be realistic about where your credit stands now.

FORBES: Financial Chore #3: Consolidate Your Debt

Even before you start, you need to make some judgments.

NEWYORKER: Personal Best

Suppose you drop dead before you start collecting your retirement benefit and before you reach full retirement age.

FORBES: Ten Nasty Social Security Gotchas to Avoid