受到监视英文

be monitored the whole course

spymonitorwatch

观察是observe或者watch。监视surveillance.

翻译成英文是He sensed that someone was watching himself下图是翻译截图

observe watch over

monitor;watch;spy;be on constant guard[supervise;keep tabs on]∶监督

He felt he was being watched over.

be monitored for the whole course吧。不是特别确定，指全过程（监控）的意思。不过英文有 the whole working course的说法。如果用fully的话，主要是指“完全”，具体含义要你自己去感觉。