很困難的用法和樣例：
例句
-
要用科學的字眼來表達它是很困難的。
It is difficult to express it in terms of science. -
在一個短語中，決定哪個詞是主要詞或重要詞，有時是很困難的。
It is difficult at times to determine which is the principal or important term in a phrase. -
那個商店在一條單行道的街上，這使停車很困難。
The shop is in a one-way street, which makes it very difficult for parking.
