feeling sad or bored for a long time
长时间感到悲伤或无聊 (cháng shíjiān gǎndào bēishāng huò wúliáo)
"He’s been in the doldrums since his team lost."
"自从他的队伍输掉后，他一直在低谷中。" (Zìcóng tā de duìwǔ shūdiào hòu, tā yīzhí **zài dīgǔ zhōng**.)
to block an area by using a rope or barrier
to feel excited or nervous because of love
to speak or perform without preparation
the most vulnerable part of a system or group
to create or develop trust in a relationship
used to say that an activity has been successful up to this...
