n.块茎；球根；[解]结节；隆起；肿胀
The potato is a tuber plant. 马铃薯是块茎植物。
Along with the rise of temperature, both tuber weight and bulk increased rapidly. 随着温度的升高，块茎重量和体积迅速增长。
A small tuber was detected in her armpit. 发现她腋下有个小结节。
