to be giving testimony in court
在法庭上作证 (zai fa ting shang zuo zheng)
"The victim was nervous while on the witness stand."
"受害者在证人席上很紧张。" (shou hai zhe zai zheng ren xi shang hen jin zhang)
a big and sudden improvement
something attractive but not allowed or morally wrong
to relax and enjoy oneself freely
a person who loves reading
A difficult task or situation to handle.
a complex problem that may cause more trouble once started