be on a visit

基本解释

The fee should be required on a second repeat visit or after a portion of an extended stay.
会费可以在会员第二次到访的时候或者是延期居住了一段时间之后收取。
Active sources would be sites you visit on a regular basis that you aren’t subscribed to through either email or RSS.
主动信息源是你自己主动去浏览的，没通过任何订阅。
Britain's Foreign Office says the Thai leader will be in London on a private visit, and will not have any meetings with government officials.
英国外交部表示，这位泰国领导人将以私人访问形式到伦敦，不会与任何英国官员会面。
ept-cn.com

In fact, he had just been arrested on what looked to be dubious political charges when I met him last August on a visit to Zambia.
FORBES: Democracy Is Under Challenge In Zambia
Last October, Mr Kibaki became the first African leader to be welcomed by President George Bush on a state visit to Washington.
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