stem的例句（stem在句子中的用法）

• These include adipogenic, muscle , intraoral , dermal, and peripheral blood stem cells. 这当中包括成脂细胞, 肌细胞,表皮细胞, 外周血干细胞.
• The abaxial surface of a leaf is the underside or side facing away from the stem. 树叶的离轴面是偏离的茎干的下面或侧面.
• Cut them off cleanly through the stem just below the node. 就从茎节下面，沿茎干把它们全砍掉。
• ...an erect stem covered at the base with a few prickles. 根部有几根刺的笔直的茎
• A South African television report said the ship was ablaze from stem to stern. 南非一则电视新闻报道称，那艘船从头到尾都着了火。
• He chewed the stem of his pipe and eyed her sceptically. 他嘴里衔着烟斗柄，满腹狐疑地打量着她。
• He stooped down, cut the stem for her with his knife and handed her the flower. 他弯下腰，用刀替她将花茎割断，然后将花递给她。
• The authorities seem powerless to stem the rising tide of violence... 当局似乎无力阻止愈演愈烈的暴力活动。
• Austria has sent three army battalions to its border with Hungary to stem the flow of illegal immigrants... 奥地利已派出 3 个营的兵力去本国和匈牙利交界的边境地区阻止非法移民的流入。
• All my problems stem from drink... 我所有的问题都源于酗酒。
• Make a slit in the stem about half an inch long. 在树干上切一道大约半英寸长的口子。
• Twist the string carefully around the second stem with the other hand... 用另外一只手小心地把细绳缠绕到第二根茎上。
• Sedge is similar in appearance to grass but has a solid rather than a hollow stem... 莎草看上去和普通的草没什么两样，但其草茎是实芯的而不是空芯的。
• He pointed at me with the stem of his pipe... 他用烟斗柄指着我。
• The stinging nettle has a square stem and little hairs. 荨麻长有四方茎和细小茸毛。
• He said the move would definitely stem the haemorrhage of talent and enterprise from the colony. 他表示这一举措势必会抑制殖民地人才和企业严重流失的现象。
• The administration is trying to stem the flood of refugees out of Haiti and into Florida... 政府当局正试图阻止大批难民逃离海地，进入佛罗里达。
• The main stem will extend to around 12ft, if left to develop naturally... 如果任其自然生长，主干可以长到约12英尺。
• He told the magazine in an exclusive interview: 'All my problems stem from drink'. 他在接受一家杂志社的独家采访时说：“我所有的问题都是饮酒造成的。”