strengthen
英 ['stre?θ(?)n; -?kθ(?)n]
美['str??θn]
- vt. 加强；巩固
- vi. 变强；变坚挺
英英释意
- 1. make strong or stronger;
- "This exercise will strengthen your upper body"
- "strenghten the relations between the two countries"
- 2. gain strength;
- "His body strengthened"
- 3. give a healthy elasticity to;
- "Let's tone our muscles"