Sandbagging
v. 堆沙袋, 用沙袋打( sandbag的现在分词 )
🗣️ 情景例句
Sure. We've been in business about five years now.
当然。我们创业至今有五年的历史。
In doing we learn.
经一事，长一智。
Rays from the sun excite and energize the atmosphere of the earth,
太阳光刺激了地球的大气层，并给予它能量；