List: HSK 4

1. impressive, remarkable
2. extraordinary, outstanding

1. exchange, swap
2. trade, barter

brave, courageous, valiant

1. quality
2. character, nature

1. calm, composed, level-headed
2. to calm down, regain composure

1. close, intimate
2. to watch closely, monitor carefully

toothbrush

knowledge, learning, scholarship

1. cause, bring about, give rise to
2. provoke, arouse

1. thorough, complete, utter
2. thoroughly, completely