她犹豫了一下，然后把手放到格雷斯的胳膊上。She hesitated, then put her hand on Grace's arm.我犹豫了，不想说同事的坏话。I hesitated, not wanting to tell tales about my colleague.米雷拉走近他，犹豫片刻后，和他握了握手。Mirella approached him and, after a brief hesitation, ...
human immunodeficiency virus or HIV人体免疫缺陷病毒，即HIVThese conclusions have emerged from observations of persons exhibiting different states of immunodeficiency.这些结论是从观察人的各种免疫缺陷症状得出的.About 50 % of Acquired Immunodeficiency Sy...
不要随地乱扔果皮纸屑.Don't scatter garbage all over the place.红葡萄的色素存在于果皮中.The color of red grapes is in the skin.果皮红色在很大程度上能增进果实的引诱力.Red skin color contributes greatly to the attractiveness of the fruit....