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 .
对于像糖和还己烷这样的构象，使用者对每个环作出一个构象作为单独的输入分子。
Moscow ( afp ) - politicians love to be shown kissing babies , but russian president vladimir putin took on an altogether more slippery customer friday by puckering up for a fish .
