// gradient tracking resumes hereThe with keyword takes a context expression and a block. The context is entered before the block runs and exited after it completes.
DBConn *conn = db_open(connstr);
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% Depth 2: \count10018-\count10026
他們可以與數百甚至數千家「合作夥伴」（也稱為其他供應商）分享這些資訊。
We can easily write a recursive sum function: