It costs a bit more than I wanted to spend.
它比我預計的消費高了一點。
There's room for another one if you move up a bit.
如果你挪開一點，這里還可以容納多一個人。
You need to work on your pronunciation a bit more.
你需要再加把勁改進發音。
She has bitten her nails down to the quick.
她咬指甲都咬到了活肉。
He's been bitten by the travel bug.
他迷上了旅游。