Neil Armstrong and Buzz Aldrin were allowed to set foot inside the White House, while Michael Collins was forced to drive around in circles outside.
尼尔·阿姆斯特朗和巴兹·奥尔德林被允许踏入白宫，而迈克尔·柯林斯就只能开车在白宫外转圈圈。
She tried to pull her legs up, but he grabbed hold of one ankle, forced her knee down with his other and fastened her foot with a leather strap.
她想缩起脚，但他抓住她的一只脚踝，用另一只手把她的膝盖往下压，把她的脚用皮带绑起来。
The detailed practice: double foot together with, forced on the heel, adhere to the 2 ~ 3 seconds, can be repeated many times.
详细做法：双足并拢着地，用力踮起脚跟，坚持2 ~3秒，可反复屡次。
Meg forgot her foot and rose so quickly that she was forced to catch hold of Jo, with an exclamation of pain.
这时罕娜来了。梅格忘了脚痛，猛站起身，痛得叫了一声，赶紧扶住乔。
A Bellows operated by an assistant or by a foot treadle provided the forced draft for raising the temperature of the fire. Later, a waterwheel or animal power was often used to operate the Bellows.
用手动或脚踏风箱供给强制气流，以提高火焰温度，后来用水轮机或兽力带动风箱。
A Bellows operated by an assistant or by a foot treadle provided the forced draft for raising the temperature of the fire. Later, a waterwheel or animal power was often used to operate the Bellows.
用手动或脚踏风箱供给强制气流，以提高火焰温度，后来用水轮机或兽力带动风箱。
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