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(fā)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。