而面临诉讼的威胁则可能刺激搜索引擎作出改进——比如用户输入“lady gaga,mp3download”，搜索引擎只会把用户带到合法的网络音乐服务。
The threat of lawsuits might encourage them to do much more to ensure that a search for, say, “Lady Gaga mp3 download” brings up legitimate online music services only.
用户输入必需的信息，比如用户ID和密码。
The user enters the required information, such as a user ID and password.
用户输入必需的信息，比如用户ID和密码。
The user enters the required information, such as a user ID and password.
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