rub學測 L2KK [ˈrʌb] ｜ /ˈrʌb/
搓；揉；摩擦·搓揉；輕抓止癢·摩擦；生熱·搓揉的動作·難處；棘手的障礙
初級單字卻藏進階抽象義，易失分
The plan seemed perfect, but the rub was that no one wanted to pay for it.
那個計畫看似完美，但難處在於沒有人願意付錢。
一個畫面：手來回摩擦生熱
搓揉止癢來回搓皮膚，止癢也舒緩
摩擦生熱兩物體互搓，摩擦出熱或火
輕輕搓一下當名詞：擦拭或按摩的動作
計畫卡關進展中冒出的難處或阻礙
義項
搓手取暖B1verb搓；揉；摩擦
It was cold outside, so I rubbed my hands together to warm them up.
外面很冷，所以我搓著雙手讓它們暖和起來。
rub your handsrub your temples
揉腳止痠B2verb搓揉；輕抓止癢
She rubbed the spot on her arm to make it feel better.
走了一整天後，Sara坐下來揉她疲累的雙腳。
rub your feetrub your eyes
摩擦生火C1verb摩擦；生熱
They rubbed two sticks together to start a fire.
他們摩擦兩根樹枝來生火。
rub two sticks together
抹乳輕搓C1noun搓揉的動作
She put lotion on her hands and gave them a gentle rub.
她把乳液抹在手上，輕輕搓揉了一下。
give it a ruba gentle rub
計畫卡關C2noun難處；棘手的障礙
We want to go on a trip this summer, but the rub is we don't have enough money.
我們想在今年夏天去旅行，但難處是我們的錢不夠。
the rub is that
片語
rub off on沾染習性 →習慣沾染給身邊的人
rub it in撒鹽傷口 →故意一再提起糗事
a back rub後背按摩 →幫忙按摩後背放鬆
a dry rub抹香料醃肉 →烤肉前先抹乾香料
你會不會這樣說？
After walking all day, Sara sat down to ___ her tired feet. (rub / rob)
看答案
rub
rub 是摩擦；rob 是搶劫，兩字只差一個字母易混淆。
'We want to go on a trip this summer, but the rub is we don't have enough money.' 這裡的 rub 最接近哪個意思？(A) 按摩 (B) 難處／障礙 (C) 摩擦生熱
看答案
(B)
此句 rub 作名詞，指造成困難的障礙，而非物理摩擦或按摩。
字族
rubbing 摩擦；搓揉的動作