n.拇指;(手套的)拇指部份;
vi.翘起拇指请求搭乘(过路汽车),示意请求搭便车;翻阅;
vt.翻阅;作搭车手势;用拇指翻脏[翻坏](书页等);
例句:
She still sucks her thumb when she's worried.
她在忧虑时仍然会吸吮大拇指。
Here's a good rule of thumb: If you have to ask the question, you aren't.
这里是一个很好的经验法则: 如果你有问题要问, 你不是.
Move the thumb as the user drags the thumb within the scroll bar.
当用户在滚动条内拖动滑块时移动滑块.