You'd better mark a white line there beforehand.

你最好事先在那里划一条白线。

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Article 21 When State secrets have to be furnished for the benefits of contacts and co-operation with foreign countries, approval must be obtained beforehand in line with the prescribed procedures.

第二十一条在对外交往与合作中需要提供国家秘密事项的，应当按照规定的程序事先经过批准。

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One case in point is the Florida division of Publix, a 760-store supermarket chain, which canceled all French wine promotions in April, despite Lebret's personal appeal. (Such stores sell a lot of the lower-end Mouton Cadet line.) Lebret figures that there were at most half a dozen complaints beforehand.

FORBES: Magazine Article