He added, " That's the reason why you have various phases of trials, to determine if in fact these candidates are safe" .

" 这就是临床试验要进行好几个阶段的原因，要确定这些候选疫苗实际上是安全的。"

Seen in the various phases of his daily life, he gave the idea of being perfectly well-balanced, as exactly regulated as a Leroy chronometer.

从福克先生日常生活看来，人们有一种印象，觉得这位绅士的一举一动都是不轻不重，不偏不倚，恰如其分，简直象李罗阿或是伊恩萧的精密测时计一样准确。

Implementation requires detailed schedules to ensure that various phases of the work are done on time.

实施需要详细的时间表，以确保各阶段的工作按时完成。

A dream can be defined as a series of thoughts, images, ideas, emotions and sensations that occur in your mind during various phases of sleep.

梦可以定义为在睡眠的不同阶段出现在您脑海中的一系列想法、图像、想法、情绪和感觉。