interloper

音标发音

The interloper, though, has never been found—until now.
不過，這另一半闖入者直到現在才發現。
He’s a man with many secrets, which he won’t even reveal to a friendly Italian priest (Paolo Bonacelli) who takes an interest in the foreign interloper.
他是個身藏諸多秘密的男人，他甚至不願意把這些秘密對一個對外國闖入者很有興趣的意大利牧師（保羅·波那切利）訴說。
However, the scientists’ description of the interloper—“N. miliaris tends to aggregate at the surface to form large, slimy green patches”— is certainly consistent with the bloom shown in this image.
然而，科學家們對這種夜光藻犯境的描述——“它們容易在水麪聚集，形成大片粘滑的綠色斑塊”——與這幅圖像中顯示的水華現象吻郃。

This second pathway results in the production of further lymphocytes which attack the interloper.
ECONOMIST: Transplant surgery
Unaffected by the African-queen-bee's scent, which normally maintains her majesty's monopoly on reproduction, the interloper activated her ovaries.
ECONOMIST: African honeybees
The interloper evidently must bargain for services that used to be her perquisite.
NEWYORKER: The Seething Hell

someone who becomes involved in an activity or a social group without being asked, or enters a place without permission

If you describe someone as an interloper, you mean that they have come into a situation or a place where they are not wanted or do not belong.