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(1)the piece of land on which something is located (or is to be located); "a good site for the school"

(2)何かがある（予定の）土地の区画

(3)a computer connected to the internet that maintains a series of web pages on the World Wide Web; "the Israeli web site was damaged by hostile hackers"

(4)WWWの一連のウェブページを維持するインターネットに接続されたコンピュータ

(1)