You did argue the importance of strong serves, but did not crystallise why the 3-, 5- or 6-strong-server option is less preferred or realistic. I simply think the conclusion of "4" appears slightly un
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发表于 2016-3-23 23:14
You did argue the importance of strong serves, but did not crystallise why the 3-, 5- or 6-strong-server option is less preferred or realistic. I simply think the conclusion of "4" appears slightly untoward and nothing more.