loosen up
近义词：relax，unwind，warmup，unstuff，unbend，slowdown，unstrain，limberup，decompress，unlax，
英英释义
Verb
- cause to become unblocked;
"The medicine unstuffed my nose in minutes!"
- become less tense, less formal, or less restrained, and assume a friendlier manner;
"our new colleague relaxed when he saw that we were a friendly group"
- make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity
- become less tense, rest, or take one's ease;
"He relaxed in the hot tub" "Let's all relax after a hard day's work"
- cause to feel relaxed;
"A hot bath always relaxes me"