●emaciated (a.) （因病或營養不足而）瘦弱的
The emaciated old lady is no more than a bag of bones because of the chronic illness.
那瘦弱老婦長期生病，骨瘦如柴。
  成語 "a bag of bones" 形像生動，指「瘦骨嶙峋的人」。

●invigorating (a.) 活力充沛、生氣蓬勃的
Flowers swaying in the idyllic garden, the lake ruffled by the balmy breeze- all this is invigorating and will help your mother pick up health speedily.
在田園式花園裡搖曳的花兒、和風吹皺一池湖水──多麼令人活力充沛，對你母親早日康復，大有裨益。

●sanguine (a.) 樂天豁達的
The recipe for a robust body is to have a sanguine disposition.
擁有健壯體格的祕訣在於養成樂天性格。

●squint-eyed (a.) 斜視的
Her family doctor broke the news to her that her son was squint-eyed.
家庭醫生向她透露一個壞消息：她兒子患了斜視。
  "cross-eyed" (a.) 則是「（其中一眼或雙眼內望）斜視的」；"cockeyed" (a.) 則是「鬥雞眼的」。

●incidence (n.) 發病率、發生的比率
Chain-smokers have highter incidences of lung cancer.
大煙槍肺癌發病率較高。

●prostration (n.) 虛弱
The traditional Chinese medicine practitioner felt the pulse of the patient who was collapsed on the street and still in a state of prostration.
中醫為在街上暈倒，現仍虛弱不堪的病人把脈。

●get over （從疾病、不快經歷等）恢復過來
Just now Alfreda was seized with severe cramp, and got over it gradually.
阿弗麗達剛才突然抽筋大作，慢慢才好過來。
  "cramp"是「抽搐、痙攣」，表達同樣意思的還有"spasm"及"twitch"（肌肉抽動）。

●under the weather 身體微感不適
I've been under the weather for one week and still in a delicate health.
我抱恙已逾一周，體質仍很虛弱。

●white as a sheet 蒼白如紙
The young boy has a sprained ankle. The pain is so unbearable that he looks white as a sheet.
那男孩扭傷足踝，痛極難忍，看起來臉色蒼白。