They had to edge their way along this, sometimes wading across shallow streams, or swimming across deep pools.
他们不得不侧着身子往前走，有时过浅溪，有时游过深潭。
新概念英语第三册
Lesson 42 Modern cavemen
📚 句中词汇解析
从本句中提取的重要词汇
adv. 有时，间或;时而;
💡 sometime某一时间的+s表副词 →有时
"Even friends disagree sometimes."
即便是朋友有时也有分歧。
近义：occasionally, oft, once, rarely, betweentimes, betweenwhiles
反义：invariably, periodically, repeatedly, steadily, usually, consistently
prep. 穿过;横穿，横过;与…交叉;在…对面;
adv. 横过，越过;在对面;交叉;斜对面;
💡 cro, cru =cross,表示”十字形,交叉”
"The only access to the farmhouse is across the fields."
去那农舍的唯一通路是穿过田野。
近义：through, athwart, on, per, thru, to
swimming
['swɪmɪŋ]
n. 游泳;眩晕;
v. 游泳( swim的现在分词);漂浮;浸，泡;旋转;
💡 swimm=swim游泳+ing行业,状态，行为 →游泳
"Swimming is good exercise."
游泳是有益的运动。
近义：lightheadedness, seasickness, vertigo, wooziness, dizziness, airsickness
n. 边;优势;（悬崖、峭壁的）边缘，端;锋利，尖锐;
vt. 在…上加边界;使渐进;给（刀刃）磨边，使锋利;修整;
vi. 慢慢向前移动，侧身移动;
💡 过去(ed)哥哥(ge)在 边缘
"The workers skirted the edge of the cliff on a geological survey."
工人们沿着崖壁作了一次地质勘察.
近义：hone, point, sharpen, strap, strop, taper
adj. 浅的，肤浅的;表面的，皮毛的;（水，器物等）浅的;（呼吸）浅的;
n. 浅处;浅滩;
v. 使变浅;使变浅薄;
💡 shall(将要)+low(低的): 浅滩
"a shallow, unsatisfying relationship"
淡薄而不令人满意的关系
近义：shoal, superficial, heartless, soulless, hollow, cursory
反义：meticulous, minute, probing, scrupulous, thorough, thoroughgoing