both sides must trust each other
双方必须彼此信任 (shuāng fāng bìxū bǐcǐ xìnrèn)
"Trust goes both ways in any relationship."
"任何关系中信任必须是双向的。" (rènhé guānxì zhōng xìnrèn bìxū shì shuāngxiàng de)
to be deeply involved in hard work or challenging situations
a person who is content and satisfied with life
to work together to solve a problem
you have to work hard to achieve success
to argue against an idea for the sake of discussion
to discuss or move between ideas casually