fitbit

fitbit
fitbit

fitbit
fit bit surge
安装钻头的冲击
surge[英][sɜ:dʒ][美][sɜ:rdʒ]
n.汹涌; 大浪,波涛;
v.汹涌; 起大浪,蜂拥而来;
第三人称单数：surges过去分词：surged现在进行时：surging过去式：surged
例句:
1.
A surge of power caused a chain reaction that set the reactor core on fire.
功率的激增引起了反应堆的链式反应,反应堆的堆芯燃烧起来.
2.
But this latest surge has consequences.
但最近的销量激增也有其后果.