Learners can feel very discouraged if an exercise is too difficult.

　　如果練習(xí)太難，學(xué)習(xí)者就可能感到很沒(méi)信心。

　　Her criticisms had the effect of discouraging him completely.

　　她批評(píng)的結(jié)果是使他完全喪失了信心。

　　You could try being a little more encouraging!

　　你可以試著多給人一些鼓勵(lì)嘛！

　　We were greatly encouraged by the positive response of the public.

　　公眾所持的'肯定態(tài)度給了我們極大的鼓舞。

　　Everyone helped to unload the luggage from the car.

　　大家都幫著從汽車上卸行李。