Life ring
n. 救生圈
?? 詞語組成解析
life
[la?f]
n. 生活，生計;生命，性命;一生，壽命;人生，塵世;
ring
[ri?]
n. 戒指，指環;鈴聲，鐘聲;環形物;拳擊場;
vt. 形成環狀;環繞;使（例如鈴）響;打電話給;
vi. 按鈴，敲鐘;回響;成環形;
??? 情景例句
He had a great capacity for learning.
他的學習能力很強。
Where are you going?
你去哪兒？
He didn't often go to look for food himself.
他不經常自己去尋找食物。