about turn of event对事态的变化;
at each turn每转一圈;
at the turn of the century在本世纪初;
at every turn老是,处处;
by turns轮流地,交替地
in turn依次地,轮流地;
on the turn正在转变中,(牛奶)在变酸;
out of turn不合时宜地,不看场合地,轻率地,鲁莽地;
to a turn正好,恰好;
turn for duty值班
水利万物而不争,
而万物莫能与之争。