许多较小的特点不容易被发现。
Many smaller features are not easy to be found.
youdao
这使得他们的大炮不容易被发现。
This made their artillery hard to find.
“你个子小，”安灼拉说，“不容易被发现。”
"You are small," said Enjolras, "you will not be seen."
进入这栋大楼而不被发现很不容易。
It's not easy for somebody to get into the building unobserved.
《牛津词典》
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