At this critical moment, you must insist on.
在这个节骨眼，你必须坚持下去。
We had better call in a specialist at this critical moment.
在这个关键时刻我们最好请一位专家来。
At this critical moment, it is more important than ever that you remain calm.
现在到了存亡绝续的时候，你更应该保持镇静。
At this critical moment, it is more important than ever that you remain calm.
现在到了存亡绝续的时候，你更应该保持镇静。
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