to suddenly become afraid to do something
突然害怕做某事 (tūrán hàipà zuò mǒu shì)
"He got cold feet before proposing to her."
"他在向她求婚前突然害怕了。" (Tā zài xiàng tā qiúhūn qián túrán hàipà le.)
to practice and improve one’s cognitive abilities
to succeed at something easily
to express the same opinion as others, especially publicly
to become involved in order to help or stop something
economic growth benefits everyone; a general improvement in...
to be in debt; losing money