久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

不要讓他躺下,也不要讓他的頭向后傾歪.Do not let him lie down or tilt his head backward.當人向后傾時這些關節(jié)受到了重載.These joints become heavily loaded whenever people lean back.你可能在接觸點身體后傾,導致網(wǎng)拍面也向后傾斜.You may be leaning back at contact which causes the...

“后傾”的英語可以翻譯為：hypsokinesis，retrodisplacement ...

“后傾”的拼音為：hòu qīng...