【Hsieh Sam】評論
faced with因为be faced with sth是表示不得不面对sth.原句应该是when they are faced with the problem由于face是及物动词,所以用facing的时候后面是不需要介係詞(Preposition).
【Shu Yu Chen】評論
faced with ph. 1. 面對; 面臨
【Shi Jou】評論
When faced with difficulties, one still needs to continue his efforts without giving up easily.