Gb	Eng
经常吮吸拇指能使牙齿向外突出.	Thumb-sucking can cause protrusion of the teeth.
踢进了那个球着实让他高兴，你看他的教练伸头大拇指在鼓励他呢！	He's absolutely delighted to have scored that goal! See his coach give him the thumbs up!