But he saw her long gentle face puckering into tears , and felt ashamed of the useless pain he was inflicting .
然而,一看到她那张文静的长脸皱缩着流下了眼泪,他又为使她蒙受痛苦而感到惭愧了。
Researchers took solutions that tasted bitter , sour , sweet , or astringent-a flavor found in legumes and raw produce that creates a dry , puckering feel in the mouth .
For sufferers of sleep apnea , research suggests that certain facial exercises , like smiling , puckering your lips , and wagging your tongue , may help ease the problem .
研究表明,对于睡眠窒息患者来说,一些面部运动,如微笑、噘嘴、舌头摆动等,可能有助于缓解这个问题。
To treat such phenomena as sugar puckering and chair-boat hexane conformations , the user needs to supply each ring conformation as a separate input molecule .