长颈鹿吃着树上的叶子.Giraffes are eating leaves on trees.长颈鹿正面对面地用力将脖子缠绕在一起，那种姿势令人大为惊诧。Facing each other, the giraffes were managing to entwine their necks in the most astonishing manner.最终, 它们进化成了长颈鹿.Eventually, they evolved into...
Cell - free , sterilized blood plasma , used in transfusions.捐献血液用于输血的人.All surgical instruments must be sterilized before use.所有的外科手术器械在使用之前，必须消毒。Cysts should be excised and sterilized to avoid ingestion by the definiti...
这就使得他诧异起来, 只好轻轻地重说一遍, “ 求婚呀, 亲爱的, ”This so far surprised him, as to induce him gently to repeat, " a personal marriage, my dear, "听并且指出你听到的答案, 然后再重说.Listen and point to the questions you hear, then repeat it.“我深信,”西丝又重说一...