rift:
n. [裂缝] a shallow area in a waterway; break in friendly relations; narrow fissure in a rock | rigid:
a. [刚硬的,不屈的] stiff and unyielding; strict; not flexible |
rigidity:
n. [僵化,死板] stiffness; the physical property of being stiff and resisting bending | rigor:
n. [严格,苛刻,精确] strictness or severity, as in temperament, action, or judgment; something hard to endure |
riot:
n. [暴动,骚乱] state of disorder involving group violence; rebellion | rip:
v. [撕,撕裂] tear or be torn violently; criticize or abuse forcefully and violently |
roam:
v. [漫游,漫步] wander; ramble; stroll | robust:
a. [健壮的] vigorous; full of health and strength; vigorous |
rod:
n. [杆,枝] stick; a long thin implement made of metal or wood | roost:
n. [栖息处,鸟巢] a place, such as a branch of a tree, where birds rest or sleep |
rotation:
n. [旋转] revolution; an act of rotating as if on an axis | routine:
n. [常规,惯例] unvarying or habitual method of procedure; occurring at fixed times or predictable intervals |
rugged:
a. [高低不平的,崎岖的] uneven; rough; very difficult | ruin:
n. [废墟,遗迹] a destroyed person, object, or building; debris |
rumble:
v. [发出低沉的隆隆声] utter or emit low dull sounds; move or proceed with a deep, long, rolling sound | rustic:
a. [乡村的,笨拙的,不舒服的] typical of country life or country people; awkwardly simple and provincial; lacking refinement or elegance |
rustproof:
a. [不锈的] treated against rusting; resistant to rust, oxidation, and corrosion | saline:
a. [含盐的,咸的] salty; containing salt; of or relating to chemical salts |
sample:
n. [范例,样品] a small part of something intended as representative of the whole | sap:
n. [树液,汁液] the liquid that carries food to all parts of a plant; essential bodily fluid |
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