"leeching" in Chinese (Traditional)
吸取（比喻，指榨取資源）- 寄生
Definition
Leeching 指的是像水蛭吸血一樣吸取他人的資源、精力或利益而不給予回報，通常用作比喻。
Usage Notes (Chinese (Traditional))
多用於口語和比喻，有負面含義，常指某人不公平地從他人獲益（如 'leeching off parents'）。在網路語境下，表示只下載不上傳（如種子下載）。與 'mooching'（要錢或食物）不同。
Examples
He was leeching money from his friends without giving anything back.
他在**吸取**朋友們的錢，卻什麼都沒給回去。
The program was leeching all the computer's memory.
這個程式正在**佔用**所有的電腦記憶體。
She is tired of her roommate leeching off her food.
她受夠了室友總是**蹭**她的食物。
People get annoyed when others keep leeching off public Wi-Fi without permission.
當有人不停地**蹭用**公共Wi-Fi（沒經同意）時，大家都會不滿。
He lost friends because he was always leeching off them, never offering to pay or help.
他總是**佔便宜**，從不主動付錢或幫忙，結果朋友們都離開他了。
Some users just keep leeching files from the group and never upload anything in return.
有些用戶只會一直**下載**羣組資源，從不回傳。