回答

・on the threshold
・difficult to approach

threshold的意思是"門檻、入口、開始"
on the threshold意味著「在門檻上」＝「有門檻」的表達方式。

I skipped cram school for weeks, so I was on the threshold.
『我幾個星期沒去補習班，所以不好意思去。』

difficult to approach意思是"難以接近"有「門檻高」的含義。
She gives the impression of being difficult to approach because of her beauty.
『她因為漂亮給人難以接近的印象。』

有幫助｜0