Sometimes people get curious and want to test the waters.

有时候人会很好奇，想试试下水到底有多深。

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If they have never done something before, they are eager to test the waters.

如果他们以前从未做过某事，他们会急于试水。

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Instead of making direct criticisms, they sometimes offered obliquely sarcastic comments to test the waters.

他们并不会直接批评，而是说些风凉话试水。

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In addition, the company launched some Facebook games this year to test the waters.

FORBES: Casual Games Publisher Big Fish On Track To Make At Least $130M This Year

If I was Erdogan, I could do worse than test the waters in US politics here.

CENTERFORSECURITYPOLICY: Center for Security Policy | Hagel, Weaker Support for Israel in the US set the Stage for Erdo?an Remarks

Test the waters with a few people who seem like they might be good mentors.

FORBES: Finding A Mentor