backing and filling

基本解释

Since then, Mr. White has made seven quilt tops, which are finished with a filling and backing between trips.
从那时起，怀特已经做了七块拼布被子面，并加上了内芯和背衬，这些都是在旅途间隙完成的。
3：Susan is backing and filling on whether she should go on to graduate school or go out and get a job, now that the job market is so good for this year's graduates.
他说：Susan不知究竟该继续上研究生课程呢，还是得出去找个工作，因为今年大学毕业生的就业市场特别景气。这段话里的backing and filling意思就是迟疑不决。
4：The boss is backing and filling about building a new factory. We need it if we want to increase our sales but he's very nervous about borrowing so much money from the bank.
他说：主管对建造新厂的事儿举棋不定。我们要想扩大销售就需要这个新厂，然而得向银行借那么多钱却又让这位主管忐忑不安。这段话里的backing and filling可解释为举棋不定。

The big rally, however, leaves the gold contract vulnerable to modest backing and filling or correction very short term.
FORBES: Technical Trading: Gold Is Vulnerable In Short Term To Backing and Filling
Comex gold futures prices are trading slightly higher Tuesday morning on some more chart backing and filling, and as traders and investors look forward to major news events this week.
FORBES: Gold Firmer amid Consolidation; Key Events This Week Awaited
Backing and filling could be possible.
FORBES: Technical Trading: Air Strikes, BOJ Easing Hopes Keep Short-Term Pattern Bullish For Gold