beef up
近义词：strengthen，fortify，
英英释义
Verb
- make strong or stronger;
"This exercise will strengthen your upper body" "strengthen the relations between the two countries"
例句
用作动词(v.)
- The government decided to beef up its air force by buying a number of new fighters.该政府决定购买一批新战机，以增强其空军实力。
- The new evidence beefed up their case.有了新的证据，他们的理由更充足了。