Have a trial run of the route, especially if they walk or cycle.
对路线进行踩点，尤其是当他们徒步或骑自行车上学的时候。
They therefore decided to run a second trial.
于是他们作出了第二次尝试。
So you're thinking like a trial run?
所以你想来个试验期？
I've to give a presentation tomorrow and I need to do a trial run.
我明天要做一个发言，我得先试着做一下。
We gave the machine a trial run before using it on the production line.
我们先让这台机器进行试转，然后再用于生产线。
He gave the machine a trial run.
他试了一下这部机器。
School is a trial run for the world and a teacher can only do so much to help us through it.
学校是为世界设立的考场，而一个老师能做的就是尽力帮助我们通过每场考试。
The results from a trial run show that the control system is reliable and convenient.
运行结果表明所设计的单片机控制系统运行可靠、操作方便。
Let's have a trial run and see if everybody knows what to do.
让我们先试一试，看看大家是否知道怎么做。
It was sort of like a trial run for the school camp.
倒有几分像学校的野营的试行。
Preparing work and trial run for a new built PET plant start-up;
介绍了胶片冷却装置和袋式除尘器的试车和验收的多项工作。
She's taking the exam a year early, just as a trial run.
她提前一年参加考试，算是试考。
She's taking the exam a year early, just as a trial run.
她提前一年参加考试，算是试考。
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