Stc
abbr. 卫星追踪委员会（Satellite Tracking Committee）；灵敏度-时间控制（Sensitivity-Time Control）；卫星电视公司（Satellite Television Corporation）；短时常数（Short-Time Constant）
🗣️ 情景例句
This is a good deal: buy 1, get 1 free.
这可是个好买卖：买一送一。
To bell
鸣叫
After it had passed, they swam on as quickly as they could because they knew that the boat would soon return.
快艇过去之后，他们以最快的速度向前游去，因为他们知道快艇马上就要转回来。