由于这些因素，每一天对我都是一场挑战。
这些可能是由于生活中各种紧张因素引发的。
This could occur due to anything that is a "stress factor" in your life.
保护效果是由于所以这些因素确切合作而形成。
The cryptic effect is due to the exact cooperation of all these factors;
保护效果是由于所以这些因素确切合作而形成。
The cryptic effect is due to the exact cooperation of all these factors;
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