?? 詞語組成解析
strain
[stren]
vt.& vi. 拉緊，拉傷;用力拉;
n. 血統，家族;性格，脾氣;語氣;一段音樂;
vt. 拉緊，拽緊或扯緊;盡量使力;扭傷;歪曲;
vi. 不懈;受到強大的壓力;拉緊，緊繃;
strain拉，壓 → 盡力拉；工作過度
??? 情景例句
How much do you need?
你需要多少錢？
It is my job to introduce the foreign guests who will be spending the week with us here.
我的責任是介紹這些將與我們共度這一周的外國客人們。
It's time I went and picked up my little girl from school.
我該去學校接我的小女兒了。